Mercedes-Benz 250 S up to the 300 SEL 6.3 (W 108/W 109, 1965 to 1972). View of safety steering, dashboard, gear lever and ignition lock. An innovative feature: These cars had just one key for all the locks; the plastic handle was a convenient enhancement. They came with a spare key, of course. Photo of a 250 SE from 1965.