I have 19' also, but I don't they will cause a huge difference in the gas milage. The wheels are light-weight forced, and weight less then most 18inch rims. Currently I am getting 25mpg. I have 600 miles on the car.
mhoops wrote:A few weeks ago, I became the proud owner of a '06 Serengeti Sand G35 Coupe. I love this car. The one question I have, is the gas consumption. Is it me, or are these cars thirsty? I got the 5 speed auto with manual shift mode since I travel DC traffic fairly often. Should I be getting better gas mileage after a few thousand miles. I was thinking maybe the 19 inch tires are causing some of the problem, but don't really know.
Pics to come soon.