Many people have become fascinated with motor cars and engines in the last 100 years as they have become cheaper and more available. Currently a huge trend exists in JDM (Japanese Domestic Market) engines and cars. These cars are not available in other car markets and are primarily made for the Japanese. The benefit of buying these cars second hand from Japan is that they have not usually done many kilometres and are available for relatively cheap.
Nissan used engines imported from Japan often have turbos and extractors as standard. Honda also has some very snazzy engines available and there is quite a trend developing in this line of cars also. used engines
In Australia, currently, the laws allow people to import Nissan engines and other JDM engines and then register the cars as collectors. But the government is changing the rules to say that the cars must be of a certain age to allow this to happen, as too many people have been taking advantage of the law and bringing Nissan and Honda engines into the country and selling them for double what they bought them for in Japan.