Car finance conundrum?

Walked into a JCT600 dealership and explained that I want a car but have bad credit. My dad had agreed to take the finance in his name,all the forms were signed and finance was agreed. The dealership asked us who would be on the logbook, I said myself would be the owner. Picked up the car and drove away. Dad rang the finance company to change the outgoing bank details to mine to make it easier,they asked whether he owned the car,he said 'no'. The car is getting repossessed in 14 days because the person taking finance should be the owner,which the dealership never told us. What can we do? We have never missed a payment and in no way at a gain if either one of us are the registered owner.