Vroom Vroom Becker- Ferrari 400i

Not only McEnroe once had a 400i:

http://erwin400.blogspot.nl/2015/10/1983-ferrari-400i-once-owned-by-tennis.html

Apparently so did Boris Becker - or his family:

https://tech2.org/romania/boris-becker-found-his-ferrari-in-tiriacs-auto-collection/

https://www.auto-bild.ro/magazin/fascinatie/celebrul-tenismen-boris-becker-gasit-138461.html

Apparently it was located in the Tiriac collection, see blog:

http://erwin400.blogspot.nl/2016/02/ferrari-400i-museum-tiriac-in-romania.html