Bob, I think it depends on the individual
Many of the cars had what others would consider atrocities like modern radios, sat navs, I saw a couple with centre consoles on the tranny tunnel, various types of tonneau hood and the like, lots of very untidy cars (sweet wrappers, maps, bottles, y'know, car junk)
That said, all were in good nick, all drove there (furthest travelled was from north of Stockholm), and some would no doubt hold their own in a beauty parade