Those look REALLY nice. Spartan, slick and modern. Good for Detroit! Much much better than the tasteless "theme" architecture we've seen of late in many North American LRT projects.
On further inspection of the rendering though, I am a bit perplexed by the use of solid horizontal armed catenary with mainline syle tensioned wire catenary instead of "pole strung" overhead. This seems to be unneccessary overkill to me and visually obtrusive for an urban arterial light rail line. PAT in Pittsburgh also made this mistake, making some of the lines look like the NorthEast Corridor. Notice the lack of mainline style tensioned catenary in this pic from Berlin:
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Or Zagreb, Croatia:
http://upload.wikimedia.org/wikipedi..._tram_(15).jpg