Google is seeking for more partnerships with automakers and suppliers this year to accelerate its work on self-driving cars. John Krafcik, the head of Google self-driving car project appeared at a media conference at the Detroit auto show in from of industry executives and said: "We hope to work with many of you guys."

He said he hopes to form more alliances this year.

Google has worked with automotive suppliers and contract manufacturers to build a small fleet of prototype self-driving cars.

Krafcik said he believed partially automating the operation of a car, requiring drivers to take command under certain conditions, can create safety problems, a key point on which Google and most automakers differ.

On the other hand, many dissagree, including Consumer Watchdog.

Commenting on Google's latest report related to accidents occured with its self-driving cars, the nonpartisan, nonprofit public interest group called on Google to release any videos of the incidents, as well as technical data gathered immediately preceding the disengagements.

The group believes that there a driver should be seated behind a steering wheel of a self-driving car - is a need self-driving robot car being tested underscores the need – as required by California DMV draft regulations.

"How can Google propose a car with no steering wheel, brakes or driver when its own tests show that over 15 months the robot technology failed and handed control to the driver 272 times and a test driver felt compelled to intervene 69 times?" said John M. Simpson, Consumer Watchdog's Privacy Project director.

Seven companies that were approved for testing self-driving cars in 2014 were required to file disengagement reports with the DMV by Jan. 1. The seven are Volkswagen Group of America, Mercedes Benz, Google, Delphi, Tesla, Bosch and Nissan.

Eleven companies - Volkswagen Group of America, Mercedes Benz, Google, Delphi Automotive, Tesla Motors, Bosch, Nissan, Cruise Automation, BMW, Honda and Ford - are now approved to test robot cars on California roads.