Over 130,000 miles on the Insight. Avereage mpg since day one has been 69mpg. This is the original Insight, not the new Prius wannabe. Had it up to 113 mph once on a downhill just to say I did. In the Insight community there is a saying, "80mpg @ 50mph or 50 mpg @ 80 mph." it is pretty spot on actually.