Supercars and exotics are actually getting smaller and smaller engines putting out more and more power… twin turbos is still the way to go for the uber schnell cars… why? Because when you get into truly ludicrous speeds you dramatically increase the power requirements to overcome drag. This is why a Veyron (twin turbo) needs 1000hp to go 250mph, but a Carrera can cruise at 160 with 350hp.

vehicle weight is extremely important - not only for the power-to-weight ratio, but for overall balance and handling. A NA engine built to push a Veyron to 250 would have to weigh over 2x what the current engine weighs, since it not only needs to produce tons of power to get to that level of performance, but the weight increases with the size of the engine, so it actually has to work against itself… it may need to pump out 1200hp just to obtain the same speed.

I guess what I’m trying to say is you can turbo/supercharge a POS engine (Thunderbird SC) and get descent power. It doesn’t lend any credit to the engineering that went into the power plant.