The Donald Trump administration plans to unveil revised self-driving car guidelines this summer to give carmakers more freedom to develop self-driving car technologies, the US Secretary of Transportation Elaine Chao has told the Detroit Auto Show recently.

The approach to self-driving cars "will be tech neutral and flexible -- not top-down, or command and control... The (Transportation) Department will not be in the business of picking winners or losers or favoring one form of technology over another," Chao said.

The US automaker General Motors (GM) has already asked permission from federal regulators to deploy its first driverless car fleet in 2019. Its customers will use a mobile app to request a ride, the way it is now for Ola or Uber cabs. In this case, customers will control the experience through buttons and touch screen tablets, reported IANS.

Here is a picturesque presentation of the latest self-driving or driverless cars on anvil from the world's top auto firms:

Volkswagen models Golf Cabriolet and Passat are stored at the CarTowers next to the Volkswagen plant.
Volkswagen models Golf Cabriolet and Passat are stored at the CarTowers next to the Volkswagen plant Reuter
Roborace's self-driving racing car is seen after its unveiling ceremony during Mobile World Congress
Roborace's self-driving racing car is seen after its unveiling ceremony during Mobile World Congress. Reuter
Nullmax CEO Lei Xu drives a Lincoln MKZ sedan equipped with his company's prototype self-driving hardware and software in Fremont, California
Nullmax CEO Lei Xu drives a Lincoln MKZ sedan equipped with his company's prototype self-driving hardware and software in Fremont, California, U.S. on October 9, 2017. Picture taken on October 9, 2017. REUTERS/Jane Lanhee Lee Reuter
A stereo vision camera is seen on ZMP Inc's RoboCar MiniVan, a self-driving Toyota Estima Hybrid car
A stereo vision camera is seen on ZMP Inc's RoboCar MiniVan, a self-driving Toyota Estima Hybrid car Reuter
A self-driving GM Bolt EV is seen during a media event where Cruise, GM's autonomous car unit, showed
A self-driving GM Bolt EV is seen during a media event where Cruise, GM's autonomous car unit, showed Reuter
A self-driving car being developed by nuTonomy, a company creating software for autonomous vehicle
A self-driving car being developed by nuTonomy, a company creating software for autonomous vehicles, Reuter
Sensors are seen mounted on a PolySync self-driving vehicle during a self-racing cars event at Thunderhill.
Sensors are seen mounted on a PolySync self-driving vehicle during a self-racing cars event at Thunderhill. Reuter