car-like controls

how can i make controls like in a driving game? to accelerate, to spin only when the vehicle has speed, to make the car turn properly when it comes to a ramp…
tips and tutorials are welcome,
thanks in advance

Right now the vehicle script from the GE demo’s is the best way to go. I’m told that the vehicle script is being updated .

demo found here -> http://continuousphysics.com/Bullet/phpBB2/viewtopic.php?t=336