It uses an electric motor turning at a modest 200 RPM and mates it to 12 identical sets of 1/50th gear reducers for a total reduction of 1/244,140,625,000,000,000,000.That's a gear ratio of 1:244 Quintillion. The output shaft is embedded in a block of concrete. The motor will turn at 200 RPM for two trillion years and then the concrete block will turn only 0.5% of one rotation.
Jalopnik:
"So what we're saying is dropping this into a Morris Minor will only slightly diminish the acceleration."