Spktyr, I believe the F series uses primarily adhesives and some rivets, and only a handful of welds. Bolting for the fenders on, same with doors and hood to their respective hinges, although as stand alone items they I think are glued together. When it came out the detailed the process extensively, I am sure you can search it via the web. Yes the Audi’s and Jags are more intricate welds and self piercing rivets if my memory is correct.
Yeah, but with the exception of the cab roof, pillars, skin, rockers, etc., pretty much all the exterior panels of the 150 can be bolted off and bolted on. With the Jags and Audis, that’s not always true.
And to be fair, the last steel 150s had a recommendation that (say) when a front fender was damaged, you don’t try to repair the fender if you couldn’t fix it with PDR, just replace it.