I don't know anything about any roof mods (I personally don't like the look of the "sharkfin" (?) antennas, whatever those do)... but M mirrors is definitely a good suggestion.
You could always go for something aftermarket...maybe even a custom made body kit.
Or buy new rims...
You just have to take a good FLAT side shot of your car...and I'm sure at least a few members can just take 10 minutes and find something nice...well, at least to just look at...while it's not really there on your ride..