No, the Spoon S2000 won't push over 308hp. Forget any 500hp rumors; no Hondas can be tuned to 500hp. So you don't have a glitched car.
Nobody rated the...
VW Polo: 15/100
Blah. Not worth hiding from the game, in my opinion. Not worth being in the game, either. Front-engined, front-wheel-drive, nothing special in the horsepower department, no racing mod, and a tad overweight. Nothing special about it, really. Give me a fully-tuned Lupo (better name, too) over the Polo any day of the week.
Xsara Rally car: 80/100
An okay rally car, not the most powerful, but fairly smooth moving. Hanles the bumps and jumps quite well, but could use about 50hp more to keep up with the rally big boys.
What do you think about the lovely '68 Toyota 2000GT?