Gottlieb ___, German engineer and car manufacturer who collaborated with Nikolaus Otto in inventing the internal-combustion engine (7)

I believe the answer is:

daimler

(Other definitions for daimler that I've seen before include "Car manufacturer" , "A milder form of a posh car" , "Make of car" , "German car pioneer, lead rim (anag.)" , "Red Liam has a swanky car" .)

I've seen this clue in The Independent.

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