We used to think that if we wanted speed, we had to sacrifice fuel economy. But we still held up as an ideal a fast car that wouldn't drain its tank after 200 miles. Audi comes the closest we've seen to date with the new S4.
Using a supercharged 3-liter V-6, the S4 easily averages more than 20 mpg, while at the same time hitting 60 mph in less than five seconds. OK, it's not as fast as a BMW M3, but we found its performance thrilling and excellent for throwing around winding country roads, its Quattro … Read more