Like the built-in driver assist technologies available in new cars on the market, the RP-1 is not fully autonomous. You can’t text or take a nap while it’s engaged. It can ease the burden of a long road trip, but you still need to pay attention while the sensors do most of the work. If the system detects an oddity – someone cuts you off or there’s snow covering the lane markers – the RP-1 will alert you to take over.