Four people plus one iQ equals a fun night but a quick drop in MPG! Took my wife and friend out to dinner and picked up my 5yo daughter on the way home. Also stopped for a few things at the store but our purchases were limited to what would fit in the "Trunk". LOL! I had been holding steady at 40MPG all week but tonight it dropped to 37MPG. I still have about half a tank and I am confident I will have it back to 40MPG by next fill-up. Overall it was a fun night and the iQ handled the load just fine. I am getting everything I wanted out of the car and loving it!