Japan's mapping technologyTechnology companies are racing to develop ultra-precise three-dimensional digital maps that can guide self-driving cars to within inches of where they are supposed to be - a hurdle the industry needs to clear if it hopes to deliv Self-driving minibusA minibus runs and stops at four fixed routes in Shanghai.Passengers are able to book the bus by scanning a QR code with their smartphones. Toyota to build test track for self-driving carsToyota is going all-in on autonomous vehicles, announcing Thursday plans to open a center this year to test driving scenarios too dangerous to perform on public roads.