My employment takes me to Europe regularly where I have a chance to rent the hot coupes of the day. Euro cars are built differently there, generally smaller because of fuel prices. They usually have lower first gearing and taller final drives than new cars sold in the US. There are usually speed limits of some sort, but the high speed cross country "M" highways have high speed limits and it is common to drive 80 mph or more and not attract attention. And of course there is Germany where you can expect to be passed reqularly at 120 mph. There are lots of sub 2 liter cars capable of sustaining 100 mph in Europe.
Here in the US, beware of the little obscure Dodge Neon SRT which will pull a 12.4 second 1/4 from any stop light with mom and kids on board. Whereas getting your big chevy to go 100 is easy, doing so and still get 40 mpg may be a bit more interesting.