x1 duello BMW - M3 VS Pontiac - Firebird
x1 duello Audi - R8 VS Lamborghini - Gallardo
x1 duello Porsche - Carrera GT VS Noble - M600
x1 duello Honda - S2000 VS Honda - Integra
x1 duello BMW - M5 VS Tesla - Model S
x1 duello Pontiac - Firebird VS Plymouth - Hemi Road Runner
x1 duello Cadillac - CTS VS Radio-controlled car - RC Car
x1 duello BMW - M3 VS Formula 1 - Formula BMW
