One of my most favorite former cars was my '96 DGGM Impala SS - I owned it from '98 to '00. Ran 14.60s with just a K&N FIPK and Flowmaster cat-back, and it got every car in the left lane on the Turnpike to move out of my way because they thought I was an unmarked trooper.
I think the most ridiculous vehicle I've ever ridden in was Andris Skulte's twin-turbo IROC - hazing the rear tires from a 50mph roll will scare the crap outta you!