The physics ceiling
for your car.
APEX LINE is the theoretical minimum lap time for a specific car on a specific track, computed from the vehicle's friction circle and corner geometry. No human drove it. It is what the laws of physics permit. The gap between your best lap and the APEX LINE is your LINE GAP. That gap belongs entirely to you.
leaderboard
"Comparing to other drivers has an excuse: setup, experience, hardware. Comparing to APEX LINE has none."
(MY LINE)
"MY LINE shows where you were. APEX LINE shows where the car can go."
estimates
"APEX LINE is computed from physics, not estimated by AI or community data."
A 2-second LINE GAP means 2 seconds of lap time improvement is physically available in the car. The question is not whether the time is there. The question is where it is, and what technique is costing it.
CEILING INDEX
CEILING INDEX is your session average G-force utilisation versus the APEX LINE ceiling. 73% means you are using 73% of the car's available grip. The remaining 27% is yours to claim — corner by corner, session by session.