German automakers aren't strangers to high-end electric cars, but they've typically focused on supercars instead of sedans -- a problem when Tesla is rapidly encroaching on their business. At last, though, it appears that die Deutschen are gearing up to fight Tesla on its home turf. Manager Magazin has sources claiming that Porsche and Mercedes-Benz are developing all-electric vehicles that would gun directly after the Model S. Details of these new rides are scarce, but they'd reportedly have a range of at least 250 miles. Porsche's car would be a smaller take on the Panamera you see here, while Mercedes has so far committed only to an EV that would compare to its E- or S-class sedans.