Are the 1600 engines in the Marea and Bravo/Brava the same? Have just bought a Marea 1600 and have no idea if the cambelt has ever been changed, car is seven years old and has done 52000 miles so need to do it now (or sooner). According to Haynes website they don't do a manual for the Marea but I already have one for the Bravo/a. 