if(key_cuu)
		{
			my.carEngineTorque = my.car_maxToque * 1.0;
			else
			{
				my.carEngineTorque = -0.3;
			}
	} 

		my.carEngineTorque = 0;
		my.carSteerTorque = 0;
		if (key_cul || key_a) {
			my.carSteerTorque = 1.0;
		}
		if (key_cur || key_d) {
			my.carSteerTorque = -1.0;
		}
		if (key_cuu || key_w) {
			my.carEngineTorque = my.car_maxTorque;    //*1.0 does not modify value
		}
		if (key_cud || key_s) {
			my.carEngineTorque = -my.car_maxTorque * 0.5;
		}

Quote:

---

it is an tip?

---

  		// read wheel controls
		if(key_cul)
		{
			my.carSteerTorque = 1.0;
		}
		if(key_cur)
		{
			my.carSteerTorque = -1.0;
		}
		if(key_cuu)
		{
			my.carEngineTorque = my.car_maxToque;
		}
			else
			{
				my.carEngineTorque = -60.0; //the car speed is decreasing
			}
		if(key_cud)
		{
			my.carEngineTorque = -my.car_maxToque * 0.5;
		}
		if(key_shift)
		{
			my.carEngineTorque = my.car_maxToque * 5.0;
		}
		wait(1);
	}
} 

		/*
		Notes:
			arrow keys left/right to steer
			up arrow key to move forward
			down arrow key to move backward slower than moving forward
			shift + up/down arrow key to move forward/backward faster
		*/
		//reset the torque values to 0
		//torque values will be 0 if no key is pressed
		//the car 'coasts' if no key is pressed
		my.carEngineTorque = 0;
		my.carSteerTorque = 0;
		//...
		if (key_cul) { 
			my.carSteerTorque = 1.0;
		}
		if (key_cur) {
			my.carSteerTorque = -1.0;
		}
		if (key_cuu) {
			my.carEngineTorque = my.car_maxToque;
		} /* else {
			my.carEngineTorque = -60.0;		// NO! You don't need to do this.
		} */
		if (key_cud) {
			my.carEngineTorque = -my.car_maxToque * 0.5;  //only half-speed in reverse
		}
		if (key_shift) {  
			//'turbo' will be applied in reverse or forward, but not otherwise
			my.carEngineTorque = my.carEngineTorque * 5;
		}
		//...
		wait(1);