This video is about the 1996 Alfa Romeo 155 V6 Ti used by the Italian driver Marco Gramenzi during some hillclimb races here in Italy. This car is probabily fitted with an almost straight piped exhaust since it's a lot louder the the one I saw last March. It's moved by a 690RC 2.5 litre V6 engine which is able to produce a max power of around 490bhp and reach the insane speed rotation of 12000 rpm. Hear the sound of the V6 engine screaming through the Italian mountains.