This would be my ranking: <P>1. Volvo S60<BR>2. Mercedes C-class<BR>3. BMW 3-series<BR>4. Audi A4<P>The S60 has a fantastic design, offers most space on the front seats, has a superior safety equipment and I really love the sound of these in-line-5-cylindre-engines. <P>The C-class is definitely a very good car with a nice exterior design but interior design is lousy. It's the worst one of these four cars. <P>BMW is a sporty car, but it is just much too small. Either you take the 4-cylindre-engine (118 hp) or you'll have to spend a lot of money - only to get the 6-cylindre-engine. That car is very expensive. <P>A few days ago, I sat in the new A4: nothing is really bad, but I just don't like that VW/Audi/Seat/Skoda style-mixture. I don't buy a car with the same buttons as I find them in a much cheaper car. <BR>Exterior design of the A4 is quite boring.