evidence: The '60 and '63 only provided the belts for the front seats as standard; rear seatbelts were dealer installed. My father bought a new '65 Mercedes Benz 190D, and it came without belts. My father had the dealer install lap belts. The MB lap belts had an early form of inertia reel; you still had the friction adjustment at the buckle, but when released, the tongue section retracted around a cylindrical arrangement so it wouldn't flop around. I believe by the late '60s, early '70s, most European cars had unibelts with an inertia reel take-up which is how we know them today. My father's '73 Volvo 144 had lap/shoulder inertia reel belts for all passengers, even the middle rear seat. Now back to '60 Fords! Quote Link to comment Share on other sites More sharing options...