I filled up today, reset my trip information and jumped on the freeway for the approx. 8 mile trip into downtown Houston. Traffic was fairly heavy but moving at about 60 mph. Until I had to slow down about a mile outside of downtown, the trip mpg leveled off at 40.6 mpg. Even with some stop and go traffic and a couple of red lights I managed 36.8 mpg for the trip into downtown. That's amazing for a car this size.
My overall average is around 25 mpg. Stop and go traffic with a bunch of red lights in suburbia kills the mileage on these cars.