Japan had homologation specials too.
For JDM enthusiasts, the car you are looking at here is the holy grail. The Z car was an important part of Japanese sports car history no matter how you look at it, but this one is special. Built for homologation purposes, the car was available only in Japan, hence the "Fairlady Z" nameplate, as the car was known as the 240Z in the US. There are a number of differences between this and the standard car, but the big one is the engine, a 2.0 straight-six out of the Skyline GT-R.
The S20 engine in the Z 432 is actually the same displacement as the one found in the regular JDM Z, but the twin-cam I6 produced 160 horsepower to the 150 produced by the 2.0-liter 4-cylinder found in both the regular Z and the 510. It's not a dramatic difference in outright numbers, but the 432 also makes better use of the power. The "432" nomenclature stands for 4 valves, 3 carburetors and 2 cams. Just 420 units of the 432 were built, with some being converted to police cars, but this one will be going up for auction in March at Amelia Island. Expect it to go for a hefty sum.