Nissan IDx Freeflow and IDx NISMO

The Datsun (and later Nissan) 510 is one of the most iconic and historically rich cars to ever come out of Japan. Fitted with a 1.6L carbureted 4-cylinder engine from the factory, the diminutive auto would easily accept a donor heart from many of its siblings, up to 2.0L and sometimes even larger if an owner had the required expertise.