you might try turning on your car and the transmitter set the car on flat ground wait like 30 seconds to be sure this works then try and drive and this will hopefully help with your gyro problem it might just not have its bearings yet if you just turn it on and start driving and that might be why your gyro is acting weird i had a problem like this on my rc heli and it was just because as soon as i started it up id take right to the air ad my problem was i just need to give the gyro like 30 seconds to make sure it leveled out