2014 cla250 premium package, sport package, driver assist package. In most of the pictures/videos of the cla, the taillights consist of an upper and lower oblong outline that lights up. On my car the taillight consists of one line that cures from the inside upper to the lower outside of the taillight. Is this a different model, different lighting package or what? It does not appear wrong or defective, just different. Anyone have any idea why the difference? Thanks.