460BHP?
Jackie Stewart won 3 F1 World titles with less. I don't know what modern regulations are but when I watched rallying Group A Sierras and the like were limited to 300 BHP.
Why on earth would anyone need a road car with 460bhp?
Just about any mass produced car of the past 40 or 50 years (with the possible exception of the Fiat 126 and Citroen 2CV) will exceed the speed limits.
Most push bikes will go faster than you can make it go.