Utility Truck.

 

This is the explorer of the small ground cars the crawler carries. It only seats one, but has ground-penatrating radar, mineral sniffers and trace analyzers, a directional communications array, and a powerful computer with a heads-up display.

 

For longer journeys, it has a multi-fuel generator, 4 isolated fuel tanks (hanging off the front), a separate fuel source for the scientific equipment, and a solar panel for backup.