Like I said before, it's not the microphone as much as where it's placed. You're asking the equivelant of "I want to sound like Eric Clapton, which guitar should I buy?"

The term "directional microphone" is a bit misleading as they are only directional in the mid and high frequencies. Wind noise and vibration are at the lower frequencies, so a directional microphone won't help. Also shotgun microphones are more susceptable to handling noise than an omnidirectional.

Your best bet would be placing one dynamic mic in the engine compartment and another at the rear of the car, near the exhaust. Bearing in mind the high sound levels, you'll probably have to attenuate the signal.