A brand very few people now about is 'Tommykaira'. It's a small company in Japan that initially modified and tuned cars, before starting to make cars on their own. They don't make cars in large numbers, but the ones they do make are very interesting.
In the early 2000's, Tommykaira made a concept car, named the ZZII. The car was supposed to become the first real Japanese supercar and was even officially announced for production at the 2001 Frankfurt Motorshow. 

One of the most exciting aspects of the car is that it was powered by an RB26DETT (you know, the one from the Skyline GT-Rs) pushing out over 540hp. Sadly the concept was bought by a different company and left to dust away.
If it wasn't for the Gran Turismo franchise, the car would probably have been completely forgotten by now. The car has been featured in the game many times and it's also the reason I know about the car at all.

So, a Japanese tuning company, building a supercar, powered by one of the most popular engines ever made. Just imagine what a legendary car this could have been by now.
Just for this thought alone, I wanted to make a "what if" concept. What if the ZZII got in production and they recently had plans of making a new one, what could it look like?