Driver's Guide
to Lap Insights

The Racing Line

The racing line is the fastest path through a corner. It minimises the total distance travelled while allowing the highest average speed, achieved by reducing the effective curvature of the turn. A tighter, more angular corner becomes a gentler arc when the correct line is used.

The Three Points

Every corner has three reference points: the turn-in, the apex, and the exit. Getting all three right is what defines a clean lap.

Early vs. Late Apex

A late apex means delaying the point at which the car touches the inside kerb. This allows a straighter approach and crucially opens up the exit, letting you apply throttle earlier and at a higher speed. Late apexes are almost always faster at corner exit and should be the default for most corners.

An early apex means touching the inside kerb sooner. This feels natural but forces a tighter, more constrained exit and delays throttle application. It is typically slower overall and a common beginner mistake.

Geometric vs. Fastest Line

The geometric centre of a corner is not always the fastest line. Sequence matters: in a complex of two or more corners, it is often worth sacrificing the line through the first corner to set up a better exit from the final one - especially when the exit leads onto a long straight.

Braking Technique

Braking is the single most recoverable area of lap time for most drivers. Even small improvements - braking later, releasing more progressively - translate directly into seconds saved over a lap.

Threshold Braking

Maximum deceleration occurs at the point just before the wheels lock. This is called threshold braking: applying maximum brake pressure that the tyres can absorb before losing grip. ABS in sim racing modulates this automatically, but understanding the principle is still critical because the brake trace - how you apply and release pressure - directly affects car stability.

Brake Point

The brake point is the last possible moment you can begin braking and still make the corner. Braking too early sacrifices lap time at corner entry; braking too late means you carry too much speed into the corner and have to scrub it off mid-turn, which compromises the entire corner.

Learn brake points using fixed landmarks: a specific kerb marker, a shadow line, a distance board. Consistent, repeatable brake points are the foundation of consistent lap times.

Brake Balance

Brake balance refers to the distribution of braking force between front and rear axles. More front bias increases braking performance but can induce understeer on entry. More rear bias can cause the car to rotate (oversteer) under braking. In real racing this is driver-adjustable; in sim racing you can experiment with this setting to find the best compromise for each car and track.

In the App - Brake Trace

The telemetry timeline chart shows your brake input as a percentage over time. A good brake trace shows a fast rise to peak, a flat hold, then a smooth progressive ramp down. Spiky, irregular traces indicate inconsistent braking that the AI Coach will flag as an opportunity for improvement.

Trail Braking

Trail braking is the technique of maintaining a decreasing level of brake pressure as the car enters the corner - overlapping braking with turning. Rather than completing all braking in a straight line, you carry a small amount of brake force into the corner entry.

Why It Works

A tyre has a finite amount of grip available at any moment. Under braking in a straight line, all grip is devoted to deceleration. Trail braking transfers some of the braking force to a later point in time - during turn-in - so the car can be driven closer to the limit for a longer period.

The additional benefit is weight transfer. Brake pressure over the front axle adds load to the front tyres, which increases their grip and helps the car rotate toward the apex. This reduces understeer on corner entry, which is a common problem on many cars.

The Technique

Trail braking is not about heavy braking into a corner - it is a progressive, tapered release. By the apex the brake pedal should be fully released. The typical pattern is:

1. Brake hard on the straight to scrub the bulk of speed.
2. At turn-in, begin releasing the brakes gradually while beginning steering input.
3. Continue reducing brake pressure as you approach the apex, proportional to how much you are turning.
4. At or just before the apex, release the brake fully and begin throttle application.

Risk and Reward

The risk of trail braking is inducing oversteer - if too much brake is maintained too deep into the corner, the rear can step out. This is particularly acute in rear-wheel-drive cars with low rear downforce. The reward is faster corner entry speeds and better rotation, which translates to earlier throttle application and better exit speed.

In the App - Identifying Trail Braking

In the lap analysis timeline, look for corners where your brake trace overlaps with steering angle input. A clean trail braking profile shows brake pressure tapering smoothly from 60-80% down to zero over the first quarter of the corner. Abrupt release or no overlap at all both indicate opportunities to improve corner entry.

Throttle Control

Where braking technique defines corner entry, throttle technique defines corner exit. Lap time is won and lost at the exit of a corner, not at the apex. A fast exit means higher speed at the end of the following straight - and that speed advantage compounds across every subsequent braking zone on the lap.

The Patience Principle

The single most impactful throttle habit to develop is patience at corner exit. The natural impulse is to apply throttle as soon as the apex is reached, but in most cases a slightly later, cleaner throttle application is faster than an early, ragged one that forces a correction.

Early throttle - before the car is pointed toward the exit - loads the rear tyres before they are aligned with the direction of travel. In rear-wheel-drive cars this causes oversteer. In all cars it causes the car to run wide on exit, forcing you to lift or correct.

Progressive vs. Aggressive Application

The correct throttle application depends on the corner type, car, and surface:

• Slow corners (hairpins, tight chicanes): a square throttle is often possible - wait until the car is pointed toward the exit, then apply throttle firmly. There is no advantage to a gradual build.
• Medium corners: a progressive build from the apex, synchronised with the steering being unwound. As you release steering angle, you add throttle.
• Fast corners: throttle application begins much earlier - sometimes before the apex - because grip levels are high and a smooth, gentle input is all that is required. Sudden throttle in a fast corner at high speed destabilises the car.

Unwinding the Steering

Throttle and steering angle should move inversely: as you reduce steering input on exit, you increase throttle. These two inputs should be in sync. The car is at its most stable when loading and unloading inputs are smooth and balanced. Sudden throttle with full steering is a common cause of snap oversteer.

Understeer & Oversteer

These are the two fundamental handling states that describe how a car's front and rear axles relate to each other when cornering at the limit of grip. Almost all handling problems reduce to one of these two conditions.

What Causes Understeer

• Entering a corner too fast - too much speed for the available front grip
• Turning in too early (before sufficient speed has been scrubbed)
• Applying throttle while still turning, loading the rear before the front is pointing straight
• Front tyres overheating due to aggressive driving or too much negative camber
• Car setup: too much front downforce relative to rear, stiff front anti-roll bar

What Causes Oversteer

• Applying throttle too early or too aggressively in a rear-wheel-drive car
• Maintaining brake pressure too deep into the corner (trail braking too aggressively)
• Sudden lift-off mid-corner (lift-off oversteer - load transfer shifts to the front)
• Rear tyres overheating or losing pressure
• Car setup: too much rear ride height, soft rear anti-roll bar, rear downforce deficit

Managing Balance with Throttle & Brake

The throttle and brake pedals do more than accelerate and decelerate - they shift weight between the front and rear of the car, and by doing so, change how much grip each axle has. This is the foundation of driver-induced balance adjustment.

Weight Transfer Basics

When you brake, the car's weight shifts forward (nose dips). This increases front tyre load and reduces rear tyre load. When you accelerate, weight shifts rearward (car squats). The speed and magnitude of these transfers determines how much grip each end of the car has at any given moment.

Correcting Understeer

Understeer means the front has lost grip. To recover grip to the front axle:

• Reduce throttle progressively - not suddenly. Easing off throttle shifts weight forward, loading the front tyres and restoring grip.
• Do not increase steering angle - it feels natural to steer harder but it overloads the already saturated front tyres further and worsens the situation.
• Wait for the car to respond - understeer has a slight delay. Reducing throttle and holding a constant steering angle will often allow the car to resume its intended path within half a second.

Inducing Understeer (Intentionally)

In certain situations you may want to induce mild understeer deliberately. In a front-wheel-drive car, applying significant throttle mid-corner loads the driven (front) wheels and can cause understeer as a way of widening the car's arc to avoid an obstacle, or to "push" the nose wide on a tight exit when you have run out of track. This is a defensive technique, not a fast one.

Correcting Oversteer

Oversteer means the rear has lost grip. The immediate correction is counter-steer - turn the steering wheel in the direction of the slide to catch the car. Beyond that, the throttle is the key tool:

• In mid-corner oversteer (RWD, throttle-induced): reduce throttle smoothly. The weight shifts forward, loading the rear tyres again. Do not lift off sharply or the weight transfer will snap the oversteer in the opposite direction.
• In entry oversteer (brake-induced): release the brakes faster. Residual braking into the corner is rotating the car more than intended.
• In lift-off oversteer: gently re-apply throttle to shift weight back to the rear and stabilise the car. Counterintuitive but effective.

Inducing Oversteer (Intentionally)

Controlled oversteer - sometimes called rotation - can be used to point the car toward the exit earlier than the natural line would allow. Two techniques:

• Throttle rotation (RWD): a brief, deliberate application of throttle mid-corner unloads the rear and rotates the car. This shortens the time spent turning, allowing earlier throttle commitment on exit.
• Trail-brake rotation: maintaining brake pressure into the corner shifts weight to the front, unloading the rear. Combined with steering input this rotates the car tightly toward the apex. Requires precise brake modulation.

In the App - Balance Signals

The app's wheel slip ratio data (GT7) shows when individual tyres are at the edge of grip. ABS and TC activation indicators show precisely when the systems are intervening - each intervention marks a moment where the driver was at or beyond the grip limit. Reducing the frequency of TC and ABS events per corner is a direct measure of improved balance management.

Weight Transfer & Platform Stability

Every input you make - throttle, brake, steering - generates a weight transfer. The speed of that transfer is determined by how abruptly you apply the input. A smooth driver minimises the frequency and magnitude of these transfers, keeping the car in a balanced, stable state for as long as possible.

The Car as a Platform

Think of the car as a four-legged stool. Each leg (tyre) can hold a certain amount of weight. Weight shifted to one end or one side means other tyres have less load and less grip. A balanced platform distributes load evenly and maximises total grip.

An abrupt brake application rocks the stool violently forward. The front legs take all the weight and the rear goes light. A smooth, progressive brake builds the load transfer gradually, keeping all four tyres working together for longer.

Smoothness as Speed

The fastest drivers are often described as smooth. This is not a style preference - it is a physical consequence of minimising unnecessary weight transfers. Smooth inputs allow each tyre to operate near its peak grip for longer. Jerky inputs repeatedly push individual tyres over their limit before stabilising - each overshoot is grip lost and time lost.

Transitions

The moment of transition between braking and throttle - the mid-corner phase - is where weight transfer is most delicate. The car needs to transition from forward load (braking) to rearward load (acceleration) while simultaneously being asked to provide lateral grip (cornering). Managing this transition smoothly is the core skill separating fast drivers from very fast drivers.

Reading Your Telemetry

The lap analysis screen shows throttle, brake, speed, and gear as continuous traces across the lap. Learning to read these charts is as important as learning the driving techniques themselves.

Speed Trace

The speed trace is the headline chart. It shows your minimum corner speed (the valley of each dip) and your peak straight-line speed. Comparing two laps' speed traces corner by corner reveals exactly where time is being lost. A lower minimum speed at corner exit typically means a later throttle point or an early apex.

Brake Trace

Look for these patterns:

• Tall, sharp spike followed by abrupt drop: panic braking and early release. Brake point may be too late, or the driver is unsure and backs off.
• Gradual rise then gradual fall: too conservative. Leaving deceleration potential on the table.
• Fast rise, flat hold, smooth taper: threshold braking with good release. This is the target shape.
• Brake trace overlapping with steering input: trail braking. If it produces lower minimum corner speed, the trail braking may be holding the driver back. If it produces higher exit speed, it is working.

Throttle Trace

Look for these patterns:

• Throttle applied before brake fully released: good overlap, smooth transition.
• Gap between brake release and throttle application: dead pedal zone, neutral mid-corner. Time being lost in the transition.
• Throttle applied then backed off immediately: overcooking the exit - applied too early before the car was properly aligned, forced a correction.
• Smooth, progressive build from apex to exit: ideal for medium and fast corners.

Gear Choice

The correct gear is the one that keeps the engine in its power band through the corner exit. Too high a gear: the engine is pulling weakly, throttle response is sluggish. Too low a gear: the engine revs out before the exit is complete, forcing an upshift mid-corner which disrupts the balance. Aim for a gear where full throttle at corner apex produces peak engine power by the end of the straight.

Comparing Laps

In the Lap History screen, tap two laps and open Analysis to compare their telemetry overlaid. The delta trace shows where time is gained and lost corner by corner. Focus on the section with the largest delta first - this is where the biggest time gain is available.

Common Mistakes & How to Fix Them

These are the patterns that appear most frequently in driver telemetry. Each is paired with what it looks like in the app and how to correct it.

Early Apex

Looks like: track map shows the car touching the inside kerb in the first half of the corner. Exit speed is lower than the sector average. AI Coach may flag "early turn-in" or "exit understeer".

Fix: delay the turn-in point by one or two car lengths. A later apex opens the exit, allowing earlier throttle. It will feel slower at first because the braking point appears later.

Braking Too Early

Looks like: brake trace begins earlier than a reference lap. Speed trace shows the car approaching the corner significantly below potential entry speed. Time loss appears in the braking zone, not the corner.

Fix: move the brake point one marker closer to the corner. Build confidence progressively - half a car length at a time, not ten meters at once.

Throttle Too Early (Exit Understeer)

Looks like: throttle trace shows early application followed by a partial lift. The car runs wide on exit. AI Coach flags "overeager throttle" or "run-off exit".

Fix: wait until the steering wheel is beginning to unwind. Synchronise steering angle reduction with throttle increase.

Dead Pedal Zone

Looks like: a gap in the traces where neither throttle nor brake is applied. The car is coasting in the mid-corner phase. This is the "hesitation" habit many drivers develop under uncertainty.

Fix: commit to either brake (trail braking) or throttle through the transition. There should be no coasting phase. The goal is seamless overlap of brake release and throttle engagement at the apex.

Inconsistent Brake Point

Looks like: brake traces start at different points across multiple laps of the same corner. Lap times vary significantly even when nothing feels wrong.

Fix: identify a fixed visual landmark for the brake point (a kerb line, a shadow, a marshal post) and commit to it. Consistency is more valuable than perfection - a consistent but slightly suboptimal brake point improves faster than a perfect but unpredictable one.