1. Frankfurt Auto Show

2. The new Mercedes AMG Project One. REUTERS/Kai Pfaffenbach

3. The new Audi Aicon concept. REUTERS/Kai Pfaffenbach

4. The new Audi Alaine. REUTERS/Kai Pfaffenbach

5. The new BMW i3s and the i scooter. REUTERS/Kai Pfaffenbach

6. The new Smart concept autonomous car Vision EQ fortwo. REUTERS/Kai Pfaffenbach

7. The new Audi A8L 55 TFSI QUATTRO. REUTERS/Kai Pfaffenbach

8. An interior by Yanfeng Automotive. REUTERS/Kai Pfaffenbach

9. Vision Mercedes-Maybach 6 Cabriolet. REUTERS/Kai Pfaffenbach

10. An VW Buzz. REUTERS/Kai Pfaffenbach

11. A Bugattie Zero 400 Zero. REUTERS/Kai Pfaffenbach

12. A VW T-Roc. REUTERS/Kai Pfaffenbach

13. The new Mercedes Project One AMG is unveiled. REUTERS/Ralph Orlowski

14. Volkswagen CEO Matthias Mueller sits in a VW Sedric car. REUTERS/Kai Pfaffenbach

15. The new Porsche Cayenne. REUTERS/Kai Pfaffenbach

16. People sweep the floor after a glass board crashed at Ferrari fair booth. REUTERS/Kai Pfaffenbach

17. People look at BMW engines. REUTERS/Kai Pfaffenbach

18. An Audi AICON. REUTERS/Kai Pfaffenbach

19. The new Ferrari Portofino. REUTERS/Ralph Orlowski

20. A BMW Z4 concept. REUTERS/Kai Pfaffenbach

21. An Audi A8. REUTERS/Kai Pfaffenbach

22. Mercedes CEO Dieter Zetsche. REUTERS/Ralph Orlowski

23. An Audi Elaine. REUTERS/Kai Pfaffenbach

24. Mercedes-Benz Vision Tokyo concept. REUTERS/Kai Pfaffenbach

25. A Bentley Continental GT. REUTERS/Kai Pfaffenbach

26. A Bugatti tire. REUTERS/Kai Pfaffenbach

27. A Bugatti Zero-400-Zero. REUTERS/Ralph Orlowski

28. A Skoda Vision E. REUTERS/Kai Pfaffenbach

29. A Porsche 911 GT3. REUTERS/Kai Pfaffenbach

30. A Skoda Vision E. REUTERS/Kai Pfaffenbach

31. A VW T-Roc. REUTERS/Kai Pfaffenbach