Stoffel Vandoorne and Esteban Gutierrez are officially listed as the reserve drivers for Racing Point, Mercedes and McLaren for 2020.
Vandoorne, however, is currently in Berlin challenging for the Formula E title with Mercedes and the latter has not competed in F1 for almost four years, a fact that is believed to have caused Racing Point some concern.
Hulkenberg's familiarity with the team was key.
Hulkenberg said: “I was on my way to the Nürburgring for another racing project when the call from Otmar [Szafnauer, team principal] came.
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