2011 Cadillac ELR

If you keep tabs on the concept cars automakers release, you may be familiar with the Cadillac Converj prototype, which General Motors unveiled at the 2009 Detroit auto show.

Wednesday, Cadillac reported that the Converj, which is an extended-range electric vehicle, just like the Chevrolet Volt, will make it to production, but will be known as the Cadillac ELR. GM is keeping the specifics under wraps, but the automaker has provided a little information on the technology that will be used to run the car.

“The Cadillac ELR will feature an electric propulsion system made up of a T-shaped lithium ion battery, an electric drive unit, and a four-cylinder engine-generator,” GM says in a press release. “It uses electricity as its primary source to drive the car without using gasoline or producing tailpipe emissions. When the battery’s energy is low, the ELR seamlessly switches to extended-range mode to enable driving for hundreds of additional miles.”

GM hasn’t given a timeline for the ELR’s debut, but Inside Line speculates that the ELR will be on the market in just a few years, saying, “GM insiders said the car most likely will go into production in 2013 as a 2014 model, using an updated version of the Volt's extended-range powertrain.”

The ELR will be similar to the Chevrolet Volt in terms of its drivetrain and four seats, but there is a lot that sets the two vehicles apart. The ELR is a coupe, and according to Car and Driver, it “should also maintain the Converj’s aggressively cab-forward, wedge-shaped good looks.” The publication also says that the ELR should be significantly more expensive than the Volt, though they don’t know by how much. “Adapting the Volt tech to a pricier—and therefore cost-amortizing—model makes a lot of sense, though, and GM appears to agree,” Car and Driver writes.

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