You may find the Car and Driver article at the link comparing effects of upsized wheels and tires on a VW Golf to be informative.
http://www.caranddriver.com/features...d-tires-tested
"What’s immediately apparent from the results is that as the wheel-and-tire packages get larger and heavier, acceleration and fuel economy suffer. Neither is a huge surprise, but we measured a 10-percent drop in fuel economy and a four-percent degradation in 0-to-60-mph acceleration from the 15s to the 19s, which is worth considering should you be thinking about “going big.” "