The thing with the propeller is a turbocharger which pumps an amount on PSI spinning on waste gasses. The flames out of the exhaust is a backfire which usually happenes when not much fuel is being used or the vehicle is at max rpm, or the vehicle has shifted. It happens on cars with powerful engines that use more gas. The car in the first page is, i'm pretty sure a chorvette stingray. Thats the end of your lesson...