This is the car on which I learned to drive. Mildly tuned 1600cc 4 cylinder engine, 4-speed manual on the column, start button separate from the ignition switch, worm gear differential, rear wheel drive. The seats folded down to make beds, and it had a sunroof. The 403 was quiet. Very quiet. So quiet and vibration-free that at idle you could barely tell that the engine was running. Of course, we may have just been deafened and shaken too much by the previous Plymouth station wagon......
Additional Peugeot 403 images from Google Image Search
Peugeot 403 public domain image by French Wikipedia user Jean-Paul.