Going to try your idea as to the rear center seat belt, yes I hate the look of the twisted belt, and just the two of us as well. Going to add the factory mud flaps soon, as well as factory Buick all weather rubber mats, and going to clear bra coat the entire hood, front facia, side mirrors, A pillars and roof. Also a set of custom "whisper beige" seat belt covers as all our other cars and trucks has them and they feel better than just the plain seat belt. I was surprised the BUick did not add puddle lights to the sides. Also plan to add satin chrome spears to the rear Bose speakers, along with Bose emblems, This along with satin trim to match the window control trim of the front seats. I guess Buick thinks our passengers in the rear are lower class?