[Arragonis]

Rust is unpredictable.

Late 90s Fords in the UK are a good example. Get a Fiesta, Ka or a Puma and you are 50/50 likely to be looking at a rusty car by now. Get a Focus, Mondeo or Galaxy and its unlikely to there at all.

GMs are very rust resistant.

VW/Audis too.

Japanese - Well you are in the 50/50 zone too. Some Toyotas are OK (Carina, Avensis) but the smaller models are a little prone to tin worm. Nissans built in Europe are OK, imported ones are less well protected.

Any Japanese grey import (i.e. a model not normally sold in the UK) is suspect - I've seen 350Zs from Japan with rust at less that 4 years old.

Land Rovers - Uggh.