 Have had the car for about a month and put on approx. 1000 mi. Have gotten very good interstate mpg- about 28 @ 80 mph, about 31 mpg @ 70 mph. Rides quiet and nice, plenty of power for normal driving. Very roomy as well- we were considering a Fusion or Milan based on reputation, price, and mpg, but the Sonata met or exceeded those requirements with more room for (future) strollers, etc. I also own a 01 Sonata, and would without a doubt recommend Hyundai vehicles.