well this car is not a lotus for real (adess monocoque + AER engine), so what's the problem if prodrive wants to rebadge as AMR in future?
Maybe next year the vantage will run only in gt-am and prodrive will use this car in lmp1-L against rebellion entering as AMR official team. It would be a great scenario: more lmp1 in field and another historic manufacturer involved in lmp1.