The point of this was what people might not know about that you can buy if you’ve got 6 figure $ burning a hole in your pocket.

Not how to build a budget fun AF Honda that will blow up after the Nth overboost.

DIY race car, street legal. ~$55k for the base car, $30k for engine and transmission. Then add all the rest for things like tires ($2k) and whatever further refinements you’d want as an owner. All told, probably $110k DIY minimum. Play with your choices here. Cheaper than any modern supercar, even the used ones.