Arguably Pininfarina’s most famous concept made its debut at the Geneva Motor Show in 1970. Of course it couldn’t move under its own steam. The Modulo might have been built on a 612 Can Am-spec Ferrari 512S chassis, but its V12 engine and gearbox were hollow shells. There to give the illusion of a working powerplant. Our pal Jim Glickenhaus saw to that when he bought the show car off Pininfarina in 2014. Nowadays not only does it have a fully-functioning V12, it’s actually road-legal. And we’ve driven it.