Yeah, it is amazing how many tricked out cars they have considering the congestion. I don't think i'd want to test drive any vehicle in Tokyo
In the cities its not easy but once you get outside them theres some well quick roads with no traffic. Did a trip up to Arai mountain from Osaka and I don't think we dropped below 100 most of time, suped up Type R Honda, radar detector fitted, stunning views of South China Sea, memorable. the run back into Osaka at night was like playing Gran Turismo.