in need of wheels badly

[Curt]

13s and 14s are too small for a 306 unless you're looking to go -100 and on the floor... 15s are ideal in most ways, looks, handling and cheap tyres. However you can easily lower a 306 60mm on 16s, it just depends on the offset of the wheels. If you do want to do something interesting, arch work is easy to do. Especially as they're basically tin foil.