Lets face it most of us will fall into two categories.
Young boy racer or older ex boy racer with disposable income.
PCP was designed to make cars affordable to those who otherwise would not be able to purchase them. Used sales will need to be mostly cash or silly high interest rate finance deals so the market for them will be much smaller at the £37k price point.
A £37k loan over 3 years at 5% is £1100 a month. If you can find someone to lend you that much unsecured or against an asset that will depreciate.
Those who were hoping to flip these for a profit will likely be disappointed. WBAC etc are paying around £33k for a new 22 plate car with delivery miles atm