My all-time favourite car is the Toyota Supra 3.0 Mk IV Twin Turbo from the early 1990’s. To my eyes the car still looks fantastic today, and the engine is stuff of legend. The Toyota 2JZ engine comes from the factory at about 320bhp (European spec), but is massively over engineered and can be tuned 500-600bhp without any significant changes. With a bigger budget, 1000bhp is possible.
I’ve just found this video of a guy building a 2JZ engine from scratch and it’s a masterpiece – he makes it look as easy as building Lego