These were spotted in Canada on a 450. Looks pretty cool. Seems to mount in the placements in the bumper. I've noticed that the 451 have a similar set of covered up holes there as well. Check the smart Canadian site for info http://thesmart.ca and see it in the Canadian brochure http://www.mercedes-benz.ca/mbccustom/smart_brochure_eng.pdfbike rack for the smart car
Called the basic rack. Its where the bike wheels go. You can get it with holds for one bike or two. You can see the black wheel blocks on it. And it has lights for when your bikes block your stop lights.... chrome strip
The chrome accessories are a dealer installed option. And not the same as the basic rack and the bike rack.ooops just answered my own question - apparently the Canadian version has a chrome "option" which includes front grill, mirror caps and strip on the trunk. Didn't see that option on the US version.