A century ago Ford revolutionised the automotive industry with the advent of the assembly line and its first mainstream product, the Model T. Fast forward a hundred years and Ford is ready to pull off the feat again — this time with the introduction of the first mainstream autonomous car. The company announced last week that it will have a self-driving car for the masses on the road by 2021. To get there, Ford is investing in or collaborating with four start-ups to enhance its autonomous vehicle development. The first of these is a $75M (£57.2M) investment in LiDAR maker Velodyne. Ford also says that it will double its Silicon Valley team to 300 people and more than double its Palo Alto campus to include 90 autonomous cars (up from the present 30).