Seated facing three monitors in a driving simulator, each subject was told to drive about 18 meters behind a computer-driven virtual car traveling at about 100 kilometers per hour (about 60 mph).

All of the moves are run through a simulator on Earth to ensure the rovers won't crash into any boulders or drive off the edge of a cliff.

I'm going to Europe to use the simulator and drive some go-karts and then I will know very well if I'm 100%.