Even though public days for the 2011 Frankfurt Motor Show have only just begun, details on the upcoming 2012 Detroit Auto Show are already starting to emerge. Volkswagen sources have divulged that they will unveil its Jetta Hybrid in Detroit and sell it by the end of 2012.

Reports claim the Jetta Hybrid will feature a 1.4-liter turbocharged gasoline engine and an electric motor powered by a lithium-ion battery pack.

Rather than aspire to Prius-like numbers of 51 miles per gallon city and 48 mpg highway, VW is more conservatively shooting to meet the 44/44/44 (that's city/highway/combined) marks set by the 2012 Honda Civic Hybrid. VW hopes that the addition of a gas-electric model will further fortify the Jetta's bid for alt-fuel efficiency excellence, a movement currently spearheaded by the popular TDI diesel model.

In related news, sources also confirm that there will be no Jetta Coupe model offered – this, despite a warm reception for the NCC concept shown in 2010.

Click title for the source