Not to downplay the thread, but both these cars have been sale for perhaps a decade now.
I have been to Springbok because (back then at least) they had a host of GT1 and GT2 parts; they looked great but I was also warned that there was as lot of non genuine bits so got spooked in the end. This is because the parts came from the same guys who sold a 'Le Mans' car that didn't appear to be one (it was narrow bodied, for a start).
The ADAC car is a nice bit of NSX history but such a niche thing... it won't be fast and I think you'd have to be an Armin Hahne superfan to justify the price.
As for the GT2, Wire Wheels rebuilt the car significantly in the last year or so and - yes - now wants c400,000 for the car as a result depending what time of the day you ask him. When I first enquired years ago, it was more like $100k but needed a lot of work.
It has tempted my father an I many a time, but the rebuild is a downside for me - I would still want it torn apart and rebuilt by people I trust. It's an old car and needs its parts lifed properly to be raced in anger.
Beyond the sticker price, there is also the small matter of the import duty and poor exchange rate currently. All for the ability to race it (uncompetitively) in the series run by Masters and Peter Auto against the likes of more modern GT2 and GT1 cars.
Unfortunately, it's racing history is pretty awful - it caught fire I believe and broke in its other race. However, it would appear to be the only car of this kind available, so I actually think the price is fair if you considered what a comparable 993 GT2 would cost if this rare (£2m+?). If the lotto numbers came up, I'd have it in a heartbeat!
Gutted that I missed the opportunity to meet Mr Thompson of TC Prototypes! I spoke to him on the phone maybe 7 years ago and he said he was retired, and all original drawings sent to Honda Racing USA and most parts scrapped. A crying shame... The guy has had a helluva career. How old was he looking?
'02 Honda NSX [Garage Queen]
'17 Huracan Performante [Weekend Car]
'19 Porsche Macan [Daily]