CR gets incredibly bad gas mileage for ALL the cars they test. They used to have that info posted for free on their website, but now it seems like almost every part of their website requires a pay membership. At any rate, cars like the Prius and Civic Hybrid are among their top gas mileage cars. They get things like 18mpg for the Accord and 9mpg for trucks and SUV's they test. Their gas mileage tests seem to be like a worst possible scenario, and not very reflective of what real owners achieve.