About the only suggestion I can offer is to check with the guys importing 25 year old JDM cars and Land Rovers. They've got a similar lack of data. Especially the Skylines. Someone is covering them. Try to hunt down someone who got one legally though. The scammers who imported it through Florida and titled it as a 240 or Maxima don't really count.
They're not tubular. And they have a closed body. And crash test data provided by Mercedes.Steve wrote:They really should insure it under something similar to the SMART Cars. Those are tubular in construction as well.

You don't need to wear survival gear and a helmet to drive a Smart car in the rain or snow

