x1 duel BMW - M6 VS BMW - Z4
x1 duel BMW - 335 VS Porsche - Cayman S
x1 duel Lamborghini - Gallardo VS Ferrari - 575M
x1 duel Cadillac - CTS-V VS Nissan - GT-R
x1 duel BMW - M3 VS Audi - RS5
x1 duel Porsche - 997 VS Bugatti - EB110 SS
x1 duel Mercedes Benz - C-Class VS Pontiac - GTO
x1 duel Chevrolet - Corvette VS Toyota - MR2 Spyder
