![Alfred Neubauer, center, coach of the Mercedes racing team holds a tiny Mercedes 300 model car surrounded by race drivers from left to right: Karl Kling, Hans Klenk, Hermann Lang, Erwin Grupp Alfred Neubauer, center, coach of the Mercedes racing team holds a tiny Mercedes 300 model car surrounded by race drivers from left to right: Karl Kling, Hans Klenk, Hermann Lang, Erwin Grupp](https://c8.alamy.com/comp/2NDC61J/alfred-neubauer-center-coach-of-the-mercedes-racing-team-holds-a-tiny-mercedes-300-model-car-surrounded-by-race-drivers-from-left-to-right-karl-kling-hans-klenk-hermann-lang-erwin-grupp-and-eugen-geiger-on-october-21-1952-at-the-rhine-main-airport-in-frankfurt-germany-prior-to-their-flight-to-mexico-where-they-will-take-part-in-the-carrera-pan-americana-car-race-ap-photoalbert-riethausen-2NDC61J.jpg)
Alfred Neubauer, center, coach of the Mercedes racing team holds a tiny Mercedes 300 model car surrounded by race drivers from left to right: Karl Kling, Hans Klenk, Hermann Lang, Erwin Grupp
![CMMC: Deeply saddened by the news that our friend and colleague Professor Hans-Dieter Klenk passed away. CMMC: Deeply saddened by the news that our friend and colleague Professor Hans-Dieter Klenk passed away.](https://www.cmmc-uni-koeln.de/fileadmin/_processed_/d/4/csm_HD_Klenk_b6a8ea6f83.png)
CMMC: Deeply saddened by the news that our friend and colleague Professor Hans-Dieter Klenk passed away.
Mercedes-Benz - Third Carrera Panamericana Mexico, 1952. The winning team Karl Kling and Hans Klenk. | Facebook
![Hans Klenk und die perforierte Toilettenpapierrolle | Museumspause online im Ludwigsburg Museum - museumsfernsehen Hans Klenk und die perforierte Toilettenpapierrolle | Museumspause online im Ludwigsburg Museum - museumsfernsehen](https://www.museumsfernsehen.de/wp-content/uploads/2021/03/hans-klenk-und-die-perforierte-t.jpg)