How each finance option works
Before comparing costs, it helps to understand the fundamental difference between these three products. They all put you behind the wheel of a car, but the structure of what you're paying for — and who owns the vehicle — varies considerably.
Personal Contract Purchase (PCP) is the most popular option in the UK, and it works differently from what most people expect. You're not financing the full value of the car. Instead, you finance only the depreciation — the difference between the car's price today and its predicted value at the end of the agreement (called the Guaranteed Minimum Future Value, or GMFV). This is why monthly payments are lower. At the end of the term, you have three choices: hand the car back, pay the balloon payment to own it, or use any equity as a deposit on a new PCP deal.
Hire Purchase (HP) is more straightforward. You pay a deposit, then fixed monthly payments that cover the entire remaining value of the car plus interest. There's no balloon payment at the end — once you've made all the payments, the car is yours. No mileage restrictions, no condition worries at handback.
Personal loan is the simplest option of all. You borrow money from a bank or building society, buy the car outright (meaning you own it from day one), and repay the loan in fixed monthly instalments. The car isn't used as security, so the lender can't repossess it if you fall behind — though they can still pursue you for the debt.
The key distinction is ownership. With PCP and HP, the finance company owns the car until you've paid everything off (including any balloon payment on PCP). With a personal loan, you're the registered owner and keeper from the moment you collect the keys. MoneyHelper explains each type of car finance in detail.