The apex represents the critical point where the racing line comes closest to the inside edge of a corner, marking the transition from the braking and turn-in phase to the acceleration phase. Hitting the apex correctly is fundamental to achieving fast lap times, as it determines both minimum corner speed and the quality of exit onto the following straight.
Types of apex:
- Geometric apex: The actual mid-point of the corner
- Racing apex: Usually later than geometric, optimising corner exit speed
- Early apex: Can compromise exit speed and should generally be avoided
The ideal apex location varies depending on corner characteristics. Corners leading onto long straights require a later apex to maximise exit speed, whilst chicanes may benefit from earlier apexes. Track conditions also influence apex choice, with wet weather often requiring tighter, earlier lines. Mastering apex placement through different corner types separates competitive drivers from the rest of the field.