man you want a 12-13 second car without boosting it, it will be even more expensive, because 12-13 allmotor cars are expensive,
any wayz, I would get a Hatch, doesn't matter which one eather 92-95 or 96-00 but make sure you don't have the power windows and stuff (because lighter) or eather a Rex, and put a H22 in it, take off the interior, strip the car out, to make it lighter, and basics Header Intake and Exhaust, some crazy cams a different IM, some more Fuel, a VAFC, a different cluch, a lighten flyweel,
and some light ass wheels, and you shoud be close to high 13 but in order to get to 12 you eather have to boost it, or spend allot of $$$ to get there,
just my .02
..I would just take a B16 and boost the shit out, but you don't want to the pshhhhhhhh sound,