You can earn the Special Cars in Pro Tour. You must race the car and beat it in a set number of races in order to earn it.
Beat some of the specific courses and you will unlock these video
Beat all courses in Pro 24.
Hold your engine rev at 5000 rpm or the middle at the rev meter. As the 1 count,hit the gas, but don't get over the red zones. If u do, you can gain 2nd gear less than half second!