[owntag]

应该是保护性注册，Google也注册了一批
Google.auto
Google.car
Google.cars
X.auto
X.car
X.cars
Adsense.auto
Adsense.car
Adsense.cars
Adwords.auto
Adwords.car
Adwords.cars
Alphabet.auto
Alphabet.car
Alphabet.cars
Android.auto
Android.car
Android.cars
Blogger.auto
Blogger.car
Blogger.cars
Chrome.auto
Chrome.car
Chrome.cars
Driverless.auto
Driverless.car
Driverless.cars
Gmail.auto
Gmail.car
Gmail.cars
Google.auto
Google.car
Google.cars
GoogleSelfDriving.auto
GoogleSelfDriving.Car
GoogleSelfDriving.Cars
SelfDriving.auto
SelfDriving.car
SelfDriving.cars
Youtube.auto
Youtube.car
Youtube.cars

另外Google还注册了GoogleAuto.com，但不拥有GoogleCar.com和GoogleCars.com