Autkauf Darlehn Right of withdrawal

Hello together, very briefly: – signed in the Authohaus purchase contract for an annual car – signed in the Authohaus Darlehn contract for the car – signed in Darlehn contract with advance payment which has not yet been paid – current salary information is not yet available to the car dealer – car can not be registered yet since proof of insurance is not yet available Can the Darlehn now be revoked with the 14-day right of withdrawal and thus also the purchase contract for the car expires? m Purchase contract is explicitly the financing via Bank BDK with sum X on their terms specified. In the contract the vehicle is also explicitly specified as a financing object. I assume that it is then a composite contract?! Are there any texts or similar that prevent it by recalling the recall of the purchase contract about the car not extinguished? Many greetings and thanks!