Chassis and engine authentication
Authenticate stamped chassis and engine numbers against factory or club records. For the Alfetta coupé specifically, verify the transaxle and De Dion rear suspension are original and functional, confirm which engine and facelift specification the car is (pre-1980 chrome-bumper GT/GTV vs post-1980 body-coloured GTV/GTV6), and note the Callaway, Turbodelta and South African GTV6 3.0 as separate collector categories.

