Looking for Vario financing or financing via Porsche or directly via check24?

Hello all together I’m thinking of getting a porsche cayenne turbo 2018. Now I can’t decide if I should take the Vario financing from sixt now via Porsche or directly via check24? Oh yes 120k € I can directly pay 160k € the car costs. So with Vario financing I can only pay 40% with the others I can enter the amount directly only then the month financing is higher than with sixt. I know this at sixt after the 3 years ago. neither the car can return or can continue to finance or can pay directly everything. So it makes more sense to get the car over sixt?