Here is a pretty comprehensive test done by WhatCar.UK of the Volvo S60 2.0T versus the Mercedes C180, Rover 75 1.8, and BMW 318i. They don't have a final verdict, but the Volvo seems to have done pretty well.
S60 2.0T vs. Mercedes C180, Rover 75 1.8, & BMW 318i!
-Drew
S60 2.0T vs. Mercedes C180, Rover 75 1.8, & BMW 318i!

-Drew