Which car would you rather have in your driveway? And why.

BMW because it doesnt cost as much as the Audi.

I would rather have a BMW M3 because it is more reliable than the Audi RS4.

I would take the M3 most likely , but they are both fantastic machines . Here is a pretty cool link , a little long but worth watching . http://www.autoblog.com/2006/05/26/video-audi-rs4-vs-bmw-m3-cs/

Audi RS4, because they already tested them in a comparison test and the Audi was faster and had better handling. I like both cars, but I would definately choose the Quattro All wheel drive over a rear wheel drive.
The Audi goes 0-60 in 4.8 seconds according to edmunds.com.
The Bmw goes 0-60 in 4.8 seconds according to edmunds.com.
Both cars have a limited top speed of 155mph.
The Audi's true top speed is 186mph.
The BMW's true top speed is 175mpg.
Both cars have over 8300 rpm redline.
Both cars have 420HP. The Audi has more torque and is about 200 ibs. lighter thean the M3.
The M3 was originally competing with the Audi S4, not the RS4, but they decided they wanted to compete against the RS4 so they moved up to a V8 engine. They also decided to compete against the RS4 because there was no other car like it and Audi was making lots of money because they had no competition.