2003 Porsche 911 C4S
NOW WE'RE TALKIN!! Truly one of the world's great sports cars, this C4S was just getting broken in when I bought it in 2004 and only had about 4500 miles on the odometer. The C4S is basically a 911 Turbo without the turbos...or the wing. It's an all-wheel-drive monster that will blow away just about anything on the street and virtually everything on the track.
Most Porsches are ordered as opposed to bought off the lot. As a result, they are almost always ala-cart with regards to options. Whoever ordered this one stayed with a simple and functional plan. It had about every comfort option, but not any of the weight saving track options (like carbon fiber dash and console inserts) and no odd colors - just a simple black and gray contrast.
Looking at a 911 engine is not particularly exciting. You can't really see anything because it's designed to be accessed from the bottom, not the top. Stepping on the accelerator on the other hand is very impressive. The C4S is quick (it gets to 60 in around 4 seconds) but the real magic happens on the track. This car can put every single one of its horses down with its all-wheel-drive system and huge amounts of grip and slip control. It stops as impressively as well.
One thing that makes this car special is that in spite of all its incredible performance abilities, it's also very refined and tame. You could drive this thing everyday with no issues and then take it to the track on the weekend and rip a new one for all your Vette and Mustang pals. I loved this car when I had it and drove it all the time. We currently have a Turbo in our garage and while it's not quite as refined as the C4S was, it's still fine to head to the store in or go out to dinner (and it's faster!).