If you want a fast car that doesn't cost a fortune why not a late 90's E55? Its a W210 which IMHO is really good, because they are easy to fix, parts are cheap, and they are all around great cars.
Now AMG improves the already excellent W210 with:
AMG wheels which, you just have to have on a MB.
AMG suspension.
AMG front brakes.
AMG engine.
AMG interior with some S600 touch's like two tone leather, nicer wood and dash ect.
AMG electronic's, to improve the already excellent 722.6 and traction control.
Throw on a louder exhuast, maybe something from Brabus and you have a real sleeper.
The best part about the E55 is that while the AMG stuff is expensive, it usualy doesn't break. So other than gas, tires, and breaks it shouldn't cost you much more to own than a regular E320. Which IMHO is a small price to pay for a 180+mph Mercedes muscle car.
http://www.autotrader.com/fyc/vdp.jsp?car_id=232725099&dealer_id=620359&car_year=1999&model=E55&num_records=&systime=1196487658938&make2=&start_year=1981&keywordsfyc=&keywordsrep=&engine=&certified=&body_code=0&fuel=&search_type=both&distance=0&marketZipError=false&search_lang=en&first_record=1&make=MB&color=&page_location=findacar%3A%3Aispsearchform&min_price=&drive=&default_sort=priceDESC&max_mileage=&style_flag=1&sort_type=priceDESC&address=06460&advanced=&end_year=2000&pager.offset=0&doors=&transmission=&max_price=&cardist=368&superSpotlight=
If you think an SLK320 is fast, your in for a shock when you plant your foot on that AMG V8.
