for sliding, I would not use shift, but the spacebar.
In a way, that when turing to the side (A or D), and shortly
tipping the spacebar, the car switches to Drift-mode.
When the player releases A or D, the car jumps out of drifting.
This reduces the need to use one additional key (shift is hard
to reach in WASD anyhow)
Actually I use this very control setup all the time. WASD to move, shift to run, space to jump, mouse to aim...
But that's just my preference and therefore doesn't matter. The player should be able to change the controls in the game.
