> i punch it at full throttle to 65mph every time i use an > on-ramp. i bought a performance car to use it as advertised. > > perfectly legal, and appropriate, when traffic permits.

It's not perfectly legal. Look up reckless driving or exhibition of speed laws. If you have a modern performance car and you do this in front of a cop, you're very likely to get a ticket. (An older car's full throttle might be too slow to concern a police officer and the laws are vague to allow the police officer's discretion.)

One can't legally use a performance car as advertised on public roads.

> in fact, if you don't, you're probably a shitty driver

I think you just mean you have to be at appropriate speed for a safe merge, but is full throttle really required? Unlikely.