Sometimes, it's the least glamorous uses of self-driving tech that can be the most important. Volvo has struck a deal that will have six of its autonomous trucks carrying limestone from a Brønnøy Kalk mine in Norway to a port roughly 3 miles away. That might not sound exciting on the surface, but the company isn't just selling the trucks and moving on. This is Volvo Trucks' very first end-to-end autonomous offering -- the mining company is paying for every metric tonne Volvo delivers. In other words, Volvo has a strong incentive to make sure its driverless tech works as promised, as it won't be paid otherwise.