I've always been a fan of "sleepers"; you know, the kinds of cars that are very unassuming in appearance but can really kick @ss out on the streets. I've owned several of them over the years but I'll start with my most recent:
This was a 1994 Dodge Spirit. I picked it up with 48K miles on it in 1998. It was powered by a the Mitsu 3.0L V6 backed up by a solid-shifting A670 3-speed auto tranny. For whatever reason, this car would flat-out HAUL. Low curb weight was one reason I'm sure (~2700 lbs.), but the V6 in this thing seemed especially hot.
One of my favorite experiences with the Spirit was when I was coming home late one night. I was on a 4-lane highway with traffic signals spaced about a mile apart. I stopped at a red light and an Acura Integra pulled up next to me. The Acura dude started revving his engine like he wanted to have a go so I thought, "why not?" As I saw the cross traffic signal go yellow, I started torquing up the engine with my left foot on the brake. When the light turned green, we both rocketed away. I had some wide meats on this car so I kept traction just fine. I had the tranny selector in D but my right foot was planted. Anyhoo, I could hear the Acura's engine winding tight before the dude shifted up to the next year. He couldn't gain anything and in fact, I was slowly pulling away. I finally backed off and he soon zoomed by me. As I got to the next signal, which was red, the Acura was sitting there. I pulled up and dude again started gunning it. So we were to round 2. Once again, my boring old Spirit sedan was able to get out in front of the Acura and enlarge the lead. By the time I backed off, I was a good two lengths in front.
I was able to run off several other stoplight challenges with that Spirit. It was surprisingly swift little beast and it was very comfortable to boot. Wish I still had it.