Complex sentence: Ruf even attempted to enter two road registered race modified versions of the CTR2 with for the 1997 Pikes Peak Hillclimb race, driven by Steve and David Beddor and, unlike other competitors, both cars were driven in and out of the circuit.
Split into simpler sentences: Ruf even attempted to enter two road registered race modified versions of the CTR2 for the 1997 Pikes Peak Hillclimb race. One of them was driven by Steve and David Beddor and, unlike other competitors, the car was driven in and out of the circuit.