Oh man, I have to reply to this cause this is awesome. Contours are nice riding cars, but lets face it, they aren't known for much power. Potential is lacking.
The SE-R now, power is capped at where ever you want to stop at. I spent prolly $6000 to go from 140hp to 330whp. That is unbelievable! I handle vettes, mustangs, civics, integras, camaros and so much more.
The 240sx though, now that is a beast. Stock SR20 block can handle 450hp, no problem. Car costs 3-6k and then a turbo motor swap for a stock SR20DET with tranny, harness, ecu and usually driveshaft is 2200-3000k and you have a 225hp RWD beast. Turbo kits are prevelant and so are body kits and JDM parts.
you can see my SE-R at
http://24.247.60.166Brent