Sorry, reading back on that, i actually wrote it quite badly. Basically Toyota have a massive show room (biggest show room in the world) in Odiba in Tokyo which is well worth a look if you go to Tokyo, espeically the history garage which has an original GTR, 240z, 2000GT, GT4 WRC Celica complete with rally damage, 4wd 3sgte wrc corolla & heaps more. But what you want is the toyota museum in Nagoya.
It is roughly 40 mins from Nagoya Station, you will need to catch a subway line to fujigaoka, its 14 stops from memory, i can't remember the line name though. at the 14th (and last stop) you need to get on a monorail called the limino line (might be spelt lamino line) and go for roughly 5 stops, the little voice will say toyota museum. The Toyota museum was probably one of the best car related things that i've been to in Japan, its up there with the Tokyo Motorshow!