Apple's secretive fleet of self-driving cars has almost doubled

Apple seems to speeding ahead with its self-driving car program. The iPhone maker has nearly doubled its fleet of autonomous test vehicles in California over the last few months, according to the Financial Times. In January, Apple was operating 27 self-driving cars on the roads, but that number has since grown to 45 vehicles, data from California's Department of Motor Vehicles shows. The new report comes as some firms have suspended their autonomous driving tests following a fatal accident involving an Uber self-driving car this weekend. If Apple's fleet has increased this much, it has surged ahead of its rivals in terms of the size of its test fleet.