x1 duel Porsche - Carrera GT VS Noble - M600
x1 duel Honda - S2000 VS Honda - Integra
x1 duel BMW - M5 VS Tesla - Model S
x1 duel Pontiac - Firebird VS Plymouth - Hemi Road Runner
x1 duel Cadillac - CTS VS Radio-controlled car - RC Car
x1 duel BMW - M3 VS Formula 1 - Formula BMW
x1 duel Bugatti - Veyron VS Formula 1 - GT5
x1 duel Mercedes Benz - C-Class VS Maserati - GranSport
