I get 11.5 l/100km (20.5 us mpg) city(ish) and 9.5 l/100km (25 us mpg) highway. These are calculated values from fill up/distance rather than what the OBC says, but the OBC is very close. No complaints at all - the 535 gets about 10% better fuel economy than did my '08 G37S and weighs more. I use 92 R+M/2 with no more than 10% ethanol. Besides, I didn't buy it to be a gas sipper...
Last edited by audiophool; 10-08-2012 at 10:55 AM.