A model of a prehistoric icthyosaurus is dragged from its pond in the grounds of Crystal Palace, London, for its annual clean. The 'keeper' is being helped by some of the local police force. (Photo by Fox Photos/Getty Images). February 1927

A model prepares backstage ahead of the Amber & Thomas show during Rosemount Australian Fashion Week Spring/Summer 2011/12 at Overseas Passenger Terminal on May 3, 2011 in Sydney, Australia. (Photo by Ryan Pierse/Getty Images)

Models Miranda Kerr, Candice Swanepoel, Adriana Lima and Erin Heatherton attend The Reveal of the What Is s*xy? List celebrated by Victoria's Secret Bombshells at The Beverly on May 12, 2011 in Los Angeles, California. (Photo by Charley Gallay/Getty Images for Victoria's Secret)

British model Demi Rose leaving Bob Bob Ricard on November 20, 2017 in London, England. (Photo by Splash News and Pictures)

American television personality, author and former model Brandi Glanville is seen on June 7, 2018 in Los Angeles, CA. (Photo by GP/Star Max/GC Images)

American reality television personality, model and social media personality Kylie Jenner seen on June 16, 2018 in Los Angeles, California. (Photo by Splash News and Pictures)

Bluebella Lingerie advertising photo shoot, Oxford Circus, London, Great Britain on September 14, 2017. Bluebella has staged its most daring lingerie campaign yet, sending 19 models to strut their stuff in skimp smalls on one of London's busiest junctions. Bluebella organised the show early in the morning to minimise congestion ahead of London Fashion Week which starts on Friday 15th September. The “models” included a medical PA, a company boss, four students, two actors, a musician and two writers. (Photo by Cavendish Press/LESAUVAGE/Bluebella)

Google has built its first self-driving car prototypes and hopes to test hundreds more models this summer. If all goes well, the company is planning a pilot program in California over the next few years.