On the valley floor stands the frozen lake of St Moritz -- home to an unlikely event of similar vintage -- "White Turf" -- horse racing on snow and ice.

CNN: Cool racing: Horses battle on snow

And Carnegie Mellon's Red Whittaker is already imaging what the next big DARPA-sponsored event could involve--perhaps a 24-hour race of robotic cars through snow and rain, or maybe team racing with coordinated convoys of driverless cars.

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