One day after the all-electric Nissan LEAF received its 99-mpg (equivalent) rating from the EPA, General Motors announced the Chevy Volt will carry a rating of 93 mpg while running purely on electricity, and 37 mpg in so-called “charge-sustaining” mode.

While the EPA tries to pin 60 mpg as a single composite number for the Volt’s efficiency, the amount of energy consumed will greatly depend on how you drive, the distance of common commutes, and how often it’s charged. "If you try to boil it down to a single number, it gets quite difficult," said Tony DiSalle, Chevrolet product marketing director. To make matters more detailed and confusing, the EPA also said the Volt has a 35-mile range on electricity alone and a range of 379 miles with gasoline and electricity.

The most fuel efficient car across North America is not a hybrid. It’s a diesel. A Volkswagen Jetta TDI Clean Diesel, to be exact. Set under real world conditions with a completely stocked Jetta TDI... Making its way across the nation and into a world records, a Jetta TDI recently achieved 58.82 MPG during a successful 9,419 mile bid for the lowest fuel consumption across the Continental United States. Despite being officially rated at “just” 30 MPG city and 41 MPG highway by the EPA, the Jetta TDI managed a whopping 14 percent improvement over the previous record of 51.58 MPG.

Volkswagen is calling their XL1 Concept the most fuel efficient car in the world and while there is no guarantee that the production version will retain the exact drivetrain from the concept, the XL1 that debuted at the Qatar Motor Show is powered by a 0.8L litre, two-cylinder turbo diesel aided by an electric motor/lithium ion battery pack and a 7-speed dual clutch transmission. This drivetrain installed in the slippery yet distinctly modern VeeDub styling affords the XL1 an amazing 261 miles per gallon.

My Toyota gets 40 mpg

Ditto. My 2009 Toyota Yaris almost gets 40 mpg.

My car is not a Hybrid, so I can go as far as I want or as long as there is a gas station. LOL

my SUV gets 20/17 and can go nearly 500 miles on a single tank

Can the engine be removed? After all, if the engine kicks on just to charge the batteries-why can't it be removed and made into an all electric car.

Seems to me if the electric drive shaft and the engine drive shaft are integrated into one drive shaft, why can't the engine and its drive shaft be removed? It's a slip-on fit, right?

Removing the engine shouldn't void the warranty, should it? After all, it isn't an add-on modification.