Built in about one week as an intermission, this car is based on set 8408, but using studless blue studless elements (from Mindstorms UBS) whenever possible.
In around the same time I also built a stock 8408 from Brickshelf scans, substituting white for yellow. (Both cars share the same Brickshelf folder.)
I presented the pair on Lugnet, and it got referred to in several places in discussions about studless Technic. Just as I intended. ;->
The pair is, so far, my only MOCs that I don't have to go buy parts to complete.