I recall finally passing a GSXR1000 on my lowly CBR250RR about a decade ago on Philip Island, last few corners. He repassed me on the pit straight but then I got him back by nailing T1 and stayed there. That felt pretty sweet. (I'm a tall / heavy guy compared to the 250, so suspension etc was not proper; the GPR70 tyres were just about the only good thing)
Greetings from a Cagiva Mito rider.
The very best part of driving the Miata is the frustrated point by from the Ferraris.
Fixing your Porsche is expensive. Fixing your Ferrari is stupidly expensive.
If you want to have fun on the track take out a car you can afford to wreck. A Porsche with a track setup you can really let loose on is going to be way more fun than a Ferrari you need to be gentle with.
There aren't many people that have enough money to not worry about wrecking their Ferrari, and fewer still that have time to bomb around on a track in one.
Plus, if you run your tuned up track Porsche into the wall and it's a write-off, hey, shit happens. If you do that with a Bugatti or an Enzo you're just being a dick. Those sorts of cars are rare and deserve some respect.
There's also another factor: After-market modifications for cars more commonly made are easier to source. You can mod an Audi or Porsche easily, it just takes money, but doing the same with a Ferrari is significantly more complicated, you'll probably need to have a lot of things custom fabricated.
You'll also learn about braking.
http://www.roadandtrack.com/motorsports/features/a25615/why-...
Working on a Chump car (http://www.chumpcar.com/) build with my brothers now. I've met people racing in that series who've owned every supercar imaginable. But when it's a beater with some safety equipment, what do you have to lose :)