Break it down into 2 categories. First is possibly attainable. Second is no way in fuck. These are just off the top of my head, get the ball rolling, post videos to justify your choices. Make this shit interesting.
First category:
The Ferrari 550 M Maranello: Can be found for under 80k, front engine, v12, sounds like lesbian sex.
The rest of mine so far are in the second category
The Porsche 959. Just fucking because
The Ferrari F40. Needs no reason. Pure early 90's sex.
The obvious choices now
The Veyron
The SSC Ultimate Aero