In parallel I bought my Enyaq Coupé a 3 + 1 bicycle carrier for the trailer coupling from Thule and just wondered how much the consumption is affected by the four bikes at the back. So far with my Volvo I had the four bicycles on the roof, because the whole thing made up on the holiday trip about 3-4 l additional fuel consumption. because this seemed extremely inefficient for the Enyaq, I just bought the carrier for the trailer coupling, however I could so far find no reliable comparison values with four bicycles on a coupé