The Most Fuel-Efficient Cars of 2010

WASHINGTON (TheStreet) -- How is a vehicle that gets 17 mpg considered "fuel efficient" while another that gets 24 mpg is labeled a gas guzzler? It's all in the eye of the beholder.

Category testing, such as the kind that Consumer Reports conducts for its fuel efficiency ratings, raises many consumption questions. Should the owners of the most efficient pickup and minivan get medals for conserving three to seven mpg less than the least efficient model, or should they be flogged for using more fuel than the least efficient subcompact? Are the most efficient SUVs helping the Earth or are they just part of the problem because they eat as much fuel as the cheaper, least efficient small car?

The value of a vehicle often depends on the values of consumers. With that in mind, Consumer Reports looked for the most and least fuel-efficient vehicles in each category. While some of the winners and losers spend equal time at the pump, the reasons for owning them are worlds apart.

Take a look at The Most and Least Fuel-Efficient Cars of 2010

Most efficient subcompact
Smart ( DAI) Fortwo Passion
Overall: 39 mpg
City: 30 mpg
Highway: 44 mpg

Least efficient subcompact
Suzuki ( 7269)
SX4 Technology
Overall: 24 mpg
City: 17 mpg
Highway: 31 mpg

Most efficient small car
Honda ( HMC) Insight EX
Overall: 38 mpg
City: 29 mpg
Highway: 45 mpg

Least efficient small car
Chevrolet Cobalt LT
Overall: 24 mpg
City: 16 mpg
Highway: 34 mpg

Most efficient sport car/roadster
Mini ( BMW) Cooper
Overall: 33 mpg
City: 24 mpg
Highway: 41 mpg

Least efficient sport car/roadster
Dodge Viper SRT10
Overall: 15 mpg
City: 10 mpg
Highway: 24 mpg

Most efficient sedan
Toyota ( TM) Camry Hybrid
Overall: 34 mpg
City: 28 mpg
Highway: 41 mpg

Least efficient sedan
Mercury Grand Marquis LSE ( F)
Overall: 16 mpg
City: 10 mpg
Highway: 25 mpg

Most efficient small SUV
Mercury Mariner Hybrid ( F)
Overall: 26 mpg
City: 22 mpg
Highway: 27 mpg

Least efficient small SUV
Jeep Wrangler Unlimited Sahara
Overall: 15 mpg
City: 10 mpg
Highway: 21 mpg

Most efficient midsized/large SUV
Lexus RX 450h
Overall: 26 mpg
City: 22 mpg
Highway: 31 mpg

Least efficient midsized/large SUV
Jeep Commander Limited
Overall: 13 mpg
City: 9 mpg
Highway: 19 mpg

Most efficient minivan
Toyota Sienna XLE (4WD)
Overall: 19 mpg
City: 13 mpg
Highway: 28 mpg

Least efficient minivan
Volkswagen ( FWB) Routan 4.0
Overall: 16 mpg
City: 10 mpg
Highway: 27 mpg

Most efficient pickup
Toyota Tacoma
Overall: 17 mpg
City: 13 mpg
Highway: 21 mpg

Least efficient pickup
Ford ( F) F-250 Lariat
Overall: 10 mpg
City: 7 mpg
Highway: 16 mpg

RELATED STORIES:





Jason Notte is a reporter for TheStreet.com. His writing has appeared in The New York Times, The Huffington Post, Esquire.com, Time Out New York, The Boston Herald, The Boston Phoenix, Metro newspaper and the Colorado Springs Independent.

More from Stocks

Global Stocks Rally as US-China Trade War Thaws; Dow Could Test 25,000

Global Stocks Rally as US-China Trade War Thaws; Dow Could Test 25,000

China Trade Truce, General Electric and Tesla - 5 Things You Must Know

China Trade Truce, General Electric and Tesla - 5 Things You Must Know

The Stock Market Has Every Reason to See a Fresh Rally

The Stock Market Has Every Reason to See a Fresh Rally

18 Top Stocks Hedge Funds Own That Goldman Sachs Thinks Will Keep Outperforming

18 Top Stocks Hedge Funds Own That Goldman Sachs Thinks Will Keep Outperforming

3 Simple Tips on Investing From TheStreet's Jim Cramer

3 Simple Tips on Investing From TheStreet's Jim Cramer