I personally think sedans should focus more on aesthetics just cuz they can look so sweet.
How about some Wheelpower PhosPhyre Halos?
<embed src="http://www.shorelinecommercial.com/dimsig.swf"
<img src="http://photos.e46fanatics.com/data/500/8485ddecompare2.jpg">
And you'd still have enough for pulleys or tints

PM me if you're interested.