Ford has warned that its 2017 profits will dip as the carmaker boosts investment into new technologies such as autonomy and electrification.

It said total adjusted pre-tax profits would fall in 2017 before recovering in 2018.

Ford is investing $4.5bn in electrification and will introduce 13 electric model derivatives by 2020.

It is also striving to become the first carmaker with a volume autonomous car, which it wants on the roads by 2021.

The US carmaker projected that autonomous vehicles could account for up to 20% of its global sales by 2030.

"We are really rethinking our business models," said chief executive Mark Fields.

"For years we have very much thought about the thing and how much of the thing we sold. Now we are thinking more about usage."