Tank size on 7's are about 21 gals. I get 400+ miles on a tank city and almost 600 hwy. I only fill up every 2 weeks. It cost me about $70-$80 to fill up with super here in NM. If you get a 740 sport the final drive ratio is different (3.15:1 opposed to 2.93:1). You will trade off mpg for better acceleration.
*edit: PS...chicks dig smokers
Last edited by JasonSC540ia; 09-07-2012 at 10:40 PM.