(British Pathe, 1931) In Germany they are working hard on the rocket-method of propulsion.*
The newest is a car using liquid oxygen, projecting a stream of gas rearward and shooting the car forward.
When the steering and other difficulties are overcome, they hope to reach a speed of 400 miles per hour.
*after a bit of misbehavior, the rocket scientists that survive pre-production will build the Moon rocket. Having invented the term 'rocket scientist'. They're quite clever.