Default Barclays Partner Finance - Fixed sum Loan - Car finance HPI problem

SDNATLST_2

Hi guys, i have a BPF fixed sum loan agreement which was taken out for purchase of an ex demo car from Hippo Car Leasing.

The agreement is in my mothers name due to her having better credit than me,

The problem is, i now want to sell the car and believe that under Fixed Sum Loan agreements, it shouldn't be secured against the car but a personal loan.

I have HPI'd the car, and finance is showing on the car?

I do not want to trade it in at a dealer, as it will have negative equity of around 3-4k as the mileage ive used is quite a bit more than normal.

Basically what im asking is, can Barclay's add the car to the HPI register legally, as they have, and do i have any rights in asking them to the remove the HPI marker allowing me to sell the vehicle privately?

Hope to hear from anyone with help.