WOODCLIFF LAKE, New Jersey — The BMW Concept ActiveE will make its world debut at the 2010 Detroit Auto Show in January, as the German automaker strives to get an electrically powered vehicle into production under a "sub-brand of BMW in the first half of the next decade," it said in a statement. The rear-wheel-drive Concept ActiveE, which is based on the BMW 1 Series Coupe, appears to have a lot of promise, judging from the advances spelled out by BMW.