With square wheels that rotate sideways, no battery, no steering, and a refuel needed after every ½-revolution. Sort of like a Volt.
Can you say "range anxiety"?
"The downside: the small car, which measures approximately 4x2 nanometres – about one billion times smaller than a VW Golf – needs to be refuelled with electricity after every half revolution of the wheels – via the tip of a scanning tunnelling microscope (STM)."
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