Apple's self-driving car or mapping vehicle possibly spotted on San Francisco streets
Vehicle believed to be self-driving Apple car has similar equipment to Google prototypes
You never know what you'll see when you're driving around San Francisco.
And during a drive over the Golden Gate Bridge on Saturday, we spied this curious-looking vehicle. The high-tech setup on the roof makes it obvious that this van has a special mission. Anyone who has seen one of Google's self-driving car prototypes will recognise some of the hardware.

Let's get a little closer. Among the collection of gadgets on the roof are the spinning Lidar laser sensors often used for self-driving cars. There are also cameras on the roof. And there's a large antenna above the rear wheel. Yet this car has no obvious markings or insignia to identify it — not even a license plate.

The obvious questions are: