This is yet more speculation: while Google's efforts have produced cars that rely heavily on detailed pre-mapping of surroundings, there are others, such as Mob

This is yet more speculation: while Google's efforts have produced cars that rely heavily on detailed pre-mapping of surroundings, there are others, such as MobilEye, who seek to have the car navigate with almost no pre-mapping. We have yet to see if one model prevails over the other.