Turkey's Competition Authority discussed earlier findings from a preliminary investigation and decided to open an investigation.
"The future is electric," Klaus Zellmer told the Los Angeles Auto Show, adding that the brand's commitment to battery-powered vehicles is "huge."
Boeing is already competing with arch-rival Airbus SE and other companies to introduce small self-flying vehicles capable of vertical takeoff and landing.
Volkswagen has admitted to deliberately cheating diesel emissions tests, sending shockwaves through the automotive industries and causing a sector-wide crackdown on polluting diesel engines.
South Korea plans to impose a combined fine of $63.1 million on automakers BMW, Mercedes-Benz and Porsche citing violations on emission rules, the environment ministry said on Thursday.
Germany's government and auto companies are under pressure to cut pollution caused by the auto industry - a lucrative sector with an annual turnover of over $400 billion.
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