Yes there are now manufacturers producing 700-1000 hp cars on the street.
Google muscle car crashes and you'll see that they don't have to be built to last.

Thank you. Can you please tell us what V8?
And feel free to tell us more about the 787.

It is interesting that there are surprisingly few, if any, successful V8 conversions.

It would seem that the simplicity of air cooling and direct drive trumps the claimed efficiency of the alternatives.

(Rotax, the exception, doesn’t yet produce higher powered engines)