The S4 Avant's 4.2-liter V8 whines like a turbine. Blip the throttle and there's a hint of bass, but nothing to disturb the atmosphere of Zen-like calm. Lower the six-speed auto box' polished lever into Drive, gather up some revs, and it's clear that Ingolstadt's pocket-rocket is designed for double-duty. The shifts are silken; the slush box quickly and constantly seeks out the highest possible gear. The steering is lithium light. Your mother could drive this car without once sensing the animal lurking within.

The 2005 Audi S4 is an affordable, luxury sports car. The naturally aspirated V8 is rare to find in any car and an absolute joy to drive. I drove a stick that was the smoothest manual transmission I have had the pleasure to drive. While some of the aluminum parts turned out to be a bit fragile, especially in the cold weather of winter, it was a strong, sturdy car under any circumstances. It has a sleek design that still catches eyes 13 years after manufacture.