In order, first off the plural of personal experience is not data. Secondly is a small nit to pick, the 3 point belt was invented by Mr. Nils Bolin in 1958. It was available in the 1959 Volvos as an standard equipment.
Let’s do an apples to apples comparison here. In 1992 USA today did some research of accidents from 1986-1991. They compared death rates of each model car, and published their results. Seat belt laws came started coming in mid 88-1989 so this comparison is a level playing field since it is looking by car model and everyone is subject to the same laws at the same time. So if your theory is correct the top dog safest car should be some land yacht of a Buick/LTD/Caddy/Impala/Oldsmobubble, with a body on a separate frame, right? You might guess that, but you would be wrong. The only car in their survey that had a zero death rate was the Volvo 240.* That is correct no one riding in a 240 died as a result of an auto accident between 1986-1991 in the US.
You know the controlled crush special that was so revolutionary that when it was introduced in 1975, the US government bought a bunch of them so that they could study it.** Not that it matters, the worst car in the survey was the body on frame, no controlled crush Corvette.
Look, my company (Volvo) spends a lot of time and effort every year in order to build a safer car. We have teams that are called by the Swedish police to help investigate accidents involving our cars. We can and do recreate these accidents in the lab, and many changes to our cars have been made from these investigations. My point is, if a body on frame land yacht was the safest type of car, then my company would be producing them, since we pride ourselves on building the safest car we can. We don’t build a body on frame cars (and haven’t in over 40 years) because they are not as safe.
- Cite, a poster in my training center that shows the car and a reproduction of the USA today story, with the headline Safest Car in the USA Today.
**Cite, Volvo print ad from the mid 1970 stating that the US government was one of our biggest customers.