From the google translation pages I have read it looks like various used car sales networks joined together to purchase good condition R32s and retrofit R33 gt-r engines and R34 turbos and sell it in something of an 'as new' status. For example:
http://www.itmedia.co.jp/news/0010/05/carpoint.html
However, looking at the engine, this car is "a wolf in sheep's clothing" to be noticed. We can not go just because the engine might use treated roughly, subjected to the original tune to retrofit the new engine BNR33. Also, the turbocharger is diverted to the current ones BNR3. Maximum output, which has been conservative in Shashidai 350PS, "The fastest car does not compete. I want to taste the height of perfection" (Dr. Sakurai). In addition to body rigidity, the side sills are filled with a foaming agent such as density independence own S & S, is all about using the scenes.
Something about foam filling the body work to increase rigidity?