[ZIPNBYE]

If your car's like mine, if you compare your speedometer / odometer with a GPS, you'll likely find that your car's gauge is very optimistic.

When getting rid of my smouldering hulks that were the oem run-flats I up-sized 10mm on tire width to gain a smidge of added circumference, thus slowing down the speedo / odo in relation to my true speed. The car's just about bang-on now...

But, again, as you're gaining a 1/2" of rim width, and the fact that the oem tire sizes look fairly stretched already on the oem wheels, when it does come time to ditch the fun-rats, go wider.

As you're in Edmonton, are you a member of the NABMWClub? Ever consider running the Alberta Advanced Driving School (likely the LAST school will be May 2011 as Race City Speedway is probably closing at the end of next year)...information can be found on the NABMWClub site.