Jolle wrote: ↑19 Jul 2019, 08:31
Vergne and Wehrlein are under contract by Ferrari and Vandoorne at Mercedes.
99% of these contracts either have a straight up "if you can get a drive you can leave for nothing" clause, or teams simply know that screwing test/sim drivers out of drives by holding them to contracts would stop drivers helping them out with sim running. Basically if a drive comes up no team begrudges a guy leaving basically immediately from any kind of test driving contract.
Likewise I sincerely doubt Vergne's team would require him to cancel his contract if he got a drive for Haas for the remainder of this season however if he intended to continue in F1 next season then yes they'd cancel the FE contract and bring in someone else. Considering he can drive the rest of the season without it getting in the way of FE he could do both.