Behind the Wheel: Valentino Balboni Tests Countach! Old test drivers never retire: they just look cooler. Mr ‘Prova’ plates himself, Valentino Balboni, sets aside new car duties for a trip down memory lane as he puts an original Lamborghini Countach LP400 through its paces on roads he knows like the back of his tanned hand. Just watch out for errant tractors…