Is that the Draco engine?
https://en.wikipedia.org/wiki/SpaceX_Draco
No, they're cold gas thrusters. The car has an air compressor, a composite overwrapped pressure vessel (COPV) and 10 nozzles.
alt Hacker News
No, they're cold gas thrusters. The car has an air compressor, a composite overwrapped pressure vessel (COPV) and 10 nozzles.