What ever happened to last year's Best of CES winners?

What happens in Vegas stays in Vegas -- and the same can be said of some products unveiled at the world's biggest tech show. What we see and report on at CES doesn't always lead to something we can buy, and that's doubly true of all the crowdfunded products that have stolen the show in recent years. So, how about our Best Of CES award winners? Glorious, glamorous concepts of the future aside, how many are still happening? Did any of our highlights from last year actually make it into stores? The conclusion is, well, mixed. And it's not just crowdfunded startups that failed to deliver.

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Mercedes' F015 luxury concept car of the future

Our automotive category winner was a concept, but defiantly so. Of course, there's no brushed metallic self-driving vehicles on the roads in 2015, but the company has extended its family of concept devices, adding a larger people carrier / minivan model at the Tokyo Motor Show. The so-called Vision Tokyo combines a hydrogen fuel cell with batteries that can be inductively charged, meaning you don't need to plug them in. Mercedes Benz says it's  working on making this distant dream a reality. In the meantime, we got to take a ride.