Brabus has takin a $25k smart car and put a bi-turbo v6 in it along with some interior and suspension mods and is charging $584,329 USD! WTF! Have they gone insane??? Plus it makes > 200bhp. Every time I think about it my mind pops a fuse.
http://www.fast-autos.net/brabus/brabusroadster.html
You could buy at least 7 Smarts, have them imported to the US, get them DOT certified, and have them professionally modded to out-preform the Brabus in every way, for less money.
Or you could buy
A New Mclaren SLR MERCEDES-BENZ
1.5 Pagani Zonda's
2 New Ferrari F430's
2 New Lamborghini's
or 5 MB SL55 AMG's
Not to mention a decent house