GM will boost production of the 2012 Chevrolet Volt to 60,000 units a year and will make the model available nationwide in the United States as well as in Canada, Europe and China by the end of 2011.

In high-demand and in tight supply, the Chevy Volt's success reflects GM's incredible turnaround over the last 2 year since its infamous bankruptcy back in 2009.

Now, GM has announced it will boost production of the Chevrolet Volt/Opel Ampera model for the next production run of the 2012 model. GM says it will produce 60,000 Volt/Ampera units in 2012 with around 45,000 of them bound for domestic customers. 2011 production of the model will also be boosted by 16,000 units.

Unfortunately, that extra production won't begin right away, since GM has had to shut down the Detroit-Hamtramck Assembly plant where the Volt is assembled in order to upgrade the plant to accommodate the new 2013 Chevrolet Malibu which will also be built there.

"The Volt will be available to customers nationwide by the end of 2011," said Cristi Landy, head of of Chevrolet Volt Marketing, in a GM release. "By taking the time to reconfigure the plant, we will be better able to meet the tremendous consumer demand."

That's right, the 2011 Volt is still not yet available everywhere in its home market. The Volt is sold right now only in California, New York, Connecticut, Maryland, Michigan, New Jersey, New York, Texas, Virginia and Washington, D.C. GM promises that by the end of the year the Volt will be available nationwide in the United States as well as in Europe, China and Canada.

Gallery: GM to boost Chevy Volt production for 2012