The Racing Line
The following diagram, Fig. 1, describes the racing line through a typical corner. The car is traveling from the bottom of the page through the corner. Note that the car is making a much larger radius than the actual radius of the corner.
Why is the racing line above the fastest?
Decreasing Radius Turn
Increasing Radius Turn
Series of Turns
When driving through a series of turns, remember that you are looking for exit speed out of the turn, or in this case, turns. Set the car up to take the fastest exit out of the last turn. This will generally, but not always mean taking very late apexes in the first turns of the series. There are too many variations to describe here so no diagram is useful.
Inclines and Declines
This is simple. Remember that the actual braking force or cornering force that a car will generate varies directly to any hill that it is negotiating. Going uphill, the car stops much quicker and will generate more cornering force. Downhill is, of course, the opposite.
