Originally Posted By: HTSS_TR
Advantages of plus sizing: better handling/performance and shorter stopping distance.
Disadvantages: firmer/hash ride, lower fuel economy, more expensive tires
Usually, plus 1 is the best compromise in term of handling, ride and cost ratio. If OEM is 225/55-16 then plus 1 is 245/45-17.
Good post! That sums it up perfectly.
When trying out a new vehicle, if you get a chance try it with different size wheels. It is amazing how it can change the handling and overall feel of the car (doesn't work on "slushy" or "plush"-ride cars). Even the speed rating of the tires (translating to sidewall stiffness) can make a big difference in the ride and handling on some cars.