BMW E30 V8
Now this was a beast of a car (for it's time), with a Rover 3.5 V8 conversion.
I didn't know much about the car when I bought it, although I was led to understand that it had Alpina suspension, although this was never verified.
In typical E30 style, it was very tail happy and I did have a few 'moments' with it from time to time.
I loved every minute of owning this car, apart from the fuel consumption, which averaged 15 - 20 mpg.
Rust was getting the better of it too... :(