39.4 mpg, probably about 20-25 miles of moderate stop and go traffic (avg speed then was 21 mph) and then 210 miles on the interstate (80-95 mph, dash said avg speed was 87 mph from when I got on to when I got off the interstate). 6 speed manual, running premium gas (92 octane from wawa) hand calculated at 39.4, dash readout 37.6, fast acceleration (or at least as fast as the car allows lol) and A/C on full blast first half of the trip, half power the other half.
Lowest was hand calculated 31, dash readout 29.4, in heavy standstill traffic about 12 miles each way (an hour and a half each way, Clearwater beach), and moderate traffic for about 100 miles total. Total of 225.7 miles. Round trip average speed was 17 mph. A/C cranking the whole time, driving as fast as I could in the traffic.