If you have not yet figured out that fuel economy numbers are a bit of a minefield, rest assured they are. We all know that fuel economy estimates are provided through the Environmental Protection Agency, but most consumers often find their fuel economy is less than promised.

In the real world, fuel mileage is impacted by varied traffic patterns, road conditions, extreme weather and your own style of driving. If you speed, then your fuel economy will be less. If you crank up the air conditioning then fuel economy suffers. These factors aren't easily replicated in EPA testing.

Today's new technologies produce more efficient engines and transmissions. Hybrids, electrics, plug-ins and the regular internal combustion engine have greatly improved fuel economy, even in heavy trucks. Transmissions are now six-, seven- and eight-speeds and continuously variable, allowing for better mileage.

Computerized systems like direct fuel injection have made gas engines almost as efficient as hybrids. Diesel has more energy than gasoline, especially gasoline that contains ethanol, so some opt for diesel over a gas engine, even though it is more expensive. Lighter materials also add to better fuel economy.

When researching your next vehicle, don't take the EPA window sticker at face value. Consider your driving habits and local driving conditions to realize a more accurate picture of your real world fuel economy.

Consumer Reports says that 55 percent of hybrids fall at least 10 percent short of published fuel economy, while 28 percent of small displacement engines with turbos don't make it. Only 10 percent of conventional cars fall short of the EPA figure.

Consumer Reports says on its website (www.consumerreports.org) that it has "discussed [its] findings with the EPA, and the agency says it is reviewing its tests and is considering updating them."

Subcompact Car:

Scion xD (34 mpg)

Small Car:

Honda Insight EX (38 mpg)

Sporty Car/Roadster:

Mini Cooper (33 mpg)

Sedan:

Toyota Camry Hybrid (34 mpg)

Hatchback:

Toyota Prius Four (44 mpg)

Small SUV:

Subaru Forester 2.5X (24 mpg)

Midsize SUV:

Toyota Highlander Hybrid Limited (24 mpg)

Minivan:

Toyota Sienna XLE FWD (20 mpg)

Pickup Truck:

Toyota Tacoma (17 mpg)