As much as selling gear, it is laying the rails before the train can proceed, as it were.

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The Mini was one of the first cars to popularize the use of the universal joint in the drive train, previously used in submarine control gear.

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Instead of vast maneuver grounds and lots of instructors and equipment, soldiers can train with small but high-tech gear such as Dismounted Soldier Training System, or they can practice techniques, such as squad tactics or IED recognition, using a training game on a laptop or even smartphones.

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Maximum range is about 6 miles, and the top speed with the current gear ratios is about 4.5mph the imagined use is carrying it on the train and zipping from the station to your destination, though at 27-pounds it's a bit of a hefty package to lug around.

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