Advised to go bankrupt ! Help

I have just over £15000 worth of debt, mostly with DCAs, I have a car on HP but it's not recorded on my Credit Report, and I'm scared the HP company will take the car back if I'm bankrupt, im not in arrears and have 2 years left on agreement, do I really have to admit I have this car to the OR ? And admit bankruptcy to HP company ? Any help appreciated

Advised to go bankrupt ! Help