“Roller” is a blanket term for modified cars in 2046. Many vehicles have been conditioned to withstand the harsh and ever-changing terrain. Tougher tires, heavier suspension, extra fuel tanks and roll bars are all common features.
The Ark core, houses a terraspire - the main vehicle through which the terrasphere helps transform landscapes via terrarforming. The Ark brain, which powers an entire Ark, is an artificial intelligence built into the ship.