When the Volt concept was first unveiled, GM was not sure how to badge European versions of the E-Flex cars. Apparently, the decision has been made and the first Euro-bound EV's from GM will be badged as Opels, with a Vauxhall version coming shortly thereafter. All three models of the E-Flex chassis will be built in Detroit atop the next-gen Delta compact car platform which was designed to carry a large lithium ion battery pack along with a range-extending engine. Though the Europeans would likely favor a diesel powerplant, it seems that the first-generation of all three E-Flex vehicles will use a gasoline-powered engine for on-the-fly battery recharging.
It goes without saying that the Volt and its Euro-clones will be the most expensive vehicles built on the Delta platform, with U.S. pricing estimated to be at least $40 grand. Across the pond, the Opel and Vauxhall E-Flex's will be saddled with at least a 10,000 euro premium. The price of gasoline, which is significantly higher in Europe than in the States, along with any government assistance for purchasers of the EVs, will determine how quickly customers will recoup that added investment.
[Source: Automotive News - sub. req'd]