I am often surprised by the amount of people who buy powerful cars (BMW/Audi etc) yet seem completely unable to use a steering wheel. There's a lovely little stretch of road between Irchester and Wollaston - it's a 60 limit, but a couple of tight corners (signposted as advisory 40pmh). If you hold your nerve and know your car, you can take them easily at around the national limit.
I tend to do the whole stretch at 55/60mph but often will have cars hooning past me at 70+ on the straight, and then I have to hit the brakes as they're slowing down to 30 for the corners......