Between alloys and Wheel trims?
do a google image search?
the difference is in either alloy wheels or steel wheels with a plastic cap on them. steel wheels are much heavier and look turd.
Steel wheels are also cheaper
Better handling, fuel economy with alloy wheels. They don't fall off like them nasty plastic trims do.
i hate plastic trims!
alas, i do not have enough £££ to upgrade to alloys yet.
^ They're lighter and hence fractionally better fuel economy and handling. Alloys reduce unsprung weight. Lighter wheels move better in response to imperfections in the road, thus improving grip and handling.
most other wheels on the cars above are on would probably look aweful to be fair..