I've got an SE-R, same idea as the Corolla XRS... The SE-R has 225/45/R17 V rated tires, and I went down to a 205/55R16 tire and rim for winter... I went with a performance style tire, as I didn't want to totally loose the handling the car has. Since it's a lease, I didn't want to break the bank, so I went with Semperit SpeedGrips from tiretrends.com
Fantastic tire, I must say. We've had 50+cm of snow here in Winnipeg in the last week, so they've definently had a workout. Handling, braking, acceleration, are all very very good, just as good as other winter tires I've had. The tires are very quiet as well, and not squishy like Q or S rated tires I've had in the past. The only negative thing I'd have to say about these and maybe all performance winter tires is the deep fresh snow traction. I'm talking about breaking your own trail through drifts. They don't have the traction of a Q rated more aggressive type tire, but I expected that.
I'm glad I went with a performance type tire for the Sentra SE-R, they suit the car very well.