For drivers looking to spend less on gas -- and who isn't, in this year of record-high prices -- a hybrid vehicle may be an attractive choice. But two hybrids are coming under scrutiny for claiming mileage they may not actually get.

Consumer Reports says advertised gas mileage on the 2013 Ford Fusion Hybrid sedan and C-Max Hybrid wagon is way off.

Ford claims both vehicles get an EPA-estimated 47 miles per gallon any way you slice it -- city, highway, and combined. After testing both cars, Consumer Reports found the numbers to be 39 mpg overall (35 city, 41 highway) for the Fusion, and 37 mpg overall (35 city, 38 highway) for the C-Max.

Consumer Reports says this is still "excellent fuel economy." It notes that the Fusion's 39 mpg is the best among all family sedans it's tested, and the C-Max's 37 mpg is second in its class. Still, the vehicles get 8 and 10 less miles per gallon, respectively, than Ford claims.

Consumer Reports also says some Fusion and C-Max owners have reported getting less-than-advertised mileage.

In a statement, Ford said, "Early C-Max Hybrid and Fusion Hybrid customers praise the vehicles and report a range of fuel economy figures, including some reports above 47 mpg. This reinforces the fact that driving styles, driving conditions, and other factors can cause mileage to vary."

Last month, the EPA slapped Hyundai and Kia for overstating mileage on many of their models. The automakers said they'll pay owners to make up the additional cost.