Each wheel was driven by its own electric motor. Imagine you're an astronaut. After a long voyage from Earth you land on an alien planet. The thrill of being where no one has been before makes your heart pound. In every direction you see strange sights.
Ancient lava flows around billion year old boulders.
Nearby hills covered with fine dust that you could ski on, just like Earth snow. The distant Sun casts strange shadows. Just then your radio crackles. Good morning astronauts, this is Houston. That's right Eagle, we're afraid you might get tired or lost.