You laugh, but the 1980 Alfa Romeo Spider (with the Arese DOHC 4) was the first regular-production car with variable valve timing. This might actually be what t

You laugh, but the 1980 Alfa Romeo Spider (with the Arese DOHC 4) was the first regular-production car with variable valve timing. This might actually be what the grandparent post is referring to-it had a mechanical variator attached to the intake camshaft to adjust the phase of valve opening....