[[Image:Racing line.svg|right|300px|{{legend-line|2px solid #0ff|Late apex}} {{legend-line|2px solid #00f|Early apex}}]]

In racing, the '''line''' is the path that a vehicle takes through a corner.  Usually it refers to the optimum line a vehicle desires to take, with the goal of minimizing the time spent in the corner, and maximize the speed of the vehicle as it leaves the corner.