How is your gas mileage now? The brake problem?

You once remarked that playing around with tires `feet of the car' is undesirable. I plan to get all weather tires at some stage (living in fear whether it might snow or not is unpleasant). Unfortunately, there are no decent AW tires for the back. But there are for 275/35/18. Do you think that would be OK? Will they fit the same rims?

Any general comments? You still like the E55?