RB17 will be a hypercar designed by Adrian Newey
 

I guess Red Bull is getting into the hypercar production business, which is getting crowded. The car will be built by Red Bull at their new factory in Milton Keynes, and will cost 5 million British pounds. It will be a track legal only car and only 50 will ever be built.

https://www.motorsport.com/f1/news/everything-we-know-about-neweys-no-rules-f1-level-red-bull-hypercar/10329722/

https://www.autocar.co.uk/car-news/new-cars/red-bull-rb17-radical-1250bhp-hybrid-hypercar-2025

It's a bit confusing that they use the term 'hypercar' since that is a specific category in WEC and IMSA. But this appears to be just a rich-guy track toy. It's not designed or intended for any specific class of racing from what I can see from the articles. Interesting none the less!