For the first time, Tesla delivers 7,000 cars per week including 5,000 Model 3s and a combination of 2,000 Models S and X.
Nevada becomes the first state in the U.S. to issue licenses for self-driving cars.
Hybrids from Honda, Toyota and Ford experience increased sales because these vehicles are fuel-efficient and environmentally-friendly.
Airbags make their appearance in the 70s but car makers are not legally required to install them until airbag technology improves in the late 90s.
Car manufacturers are required to install front, rear and shoulder seat belts.