Mercedes-Benz has improved the seat belt again. If you haven’t been up to speed, the first improvement they made was placing motors on the B- and C-pillars of the car so that the seat belt can adjust tension. Now they’ve gone a step further to make buckling up easier. Future models will feature a buckle that lights up and out by about 3-inches extends when a passenger enters the vehicle. Once the belt is inserted, the buckle retracts back into position and the light fades.

Mercedes aims to put this into production as early as 2013.