We didn't know if the rover could climb up or down the hills of the crater.
I've got a Range Rover and a little Mercedes.
I normally drive my Range Rover because I feel like a monster in it. Nobody messes with me.
It would be great some day to have astronauts in a rover on Mars.
But just about anyone except an oil company executive would say its more important to have 50 million solar powered vehicles in the United States.
A wise man never knows all, only fools know everything.