// vehicle control loop
while (1)
{
   my.carEngineTorque = 0.0;
   my.carSteerTorque = 0.0;		
   
   // read wheel controls
   if(key_a)
   {
      my.carSteerTorque = 100.0;
   }
   if(key_d)
   {
      my.carSteerTorque = -100.0;
   }
   if(key_w)
   {
      my.carEngineTorque = 2600.0;
   }
   if(key_s)
   {
      my.carEngineTorque = -400.0;
   }
   wait(1);
}