I bought the M2 based on real-world consumer mpg reports and knew it was rated too low. More would sale with accurate numbers and I'm getting around 40mpg in my long daily commute.
EPA numbers are inaccurate. Go to their website and you'll understand how they do ratings - not every vehicle is tested for fuel economy. Manufacturers are required to split each model into smaller groups and a vehicle from each group with the highest projected sales is tested. Manufacturers test all vehicles at their lab. EPA confirms about 15% of vehicles at its lab.
EPA numbers are inaccurate. Go to their website and you'll understand how they do ratings - not every vehicle is tested for fuel economy. Manufacturers are required to split each model into smaller groups and a vehicle from each group with the highest projected sales is tested. Manufacturers test all vehicles at their lab. EPA confirms about 15% of vehicles at its lab.