E36 bmw 323i common issues?

[dabofoppo]

Hoping to pick one of these up sometime soon but first i would like to find out some more about them im having trouble finding stuff on the internet so i thought id try here. so far i have ( from my dad ).
Rear arch rust, Headgasket failure due to water pump and headlining sagging. Also would like to know if bmws are really bad in winter as i have heard a lot of horror stories.

Thanks

[dabofoppo]

Sounds good so far. is there anything that i should watch for when i go and see one?

[dabofoppo]

The only thing against the 328 is that its about £200 - 300 more to insure is the difference really that much?