Sell your car vs part exchange: which puts more money in your pocket

When you are buying your next car, the dealer will usually offer to take your old one in part exchange. It is easy and it feels tidy. The question is whether that convenience is worth the money it can cost you.

What part exchange actually is

Part exchange means the dealer buys your current car and knocks its value off the price of the car you are buying. You drive in with one car and out with another, and you never handle the sale yourself.

The upside is real. It is quick, there is no advertising, no viewings and no waiting. If your priority is a clean, one-visit swap, part exchange delivers that.

Where part exchange can cost you

The trade off is price. A dealer taking your car in part exchange is buying at a trade figure, and they need room to recondition and resell it. That figure is often below what you could get by selling the car on its own.

There is also the bundling problem. When your old car's value is tangled up in a new car deal, it is hard to see whether you are getting a strong price for your car or just a strong discount on the new one. A generous part exchange figure can hide a weak discount, and the other way around.

What selling separately gives you

Selling your car on its own keeps the two deals apart. You know exactly what your car is worth, and you can negotiate the new car price cleanly.

You generally have three routes when selling separately:

• Private sale, which can reach the highest price but takes time and effort
• A quick buying service, which is fast but often pays the least
• A marketplace where verified dealers compete to buy your car

The last option is worth knowing about. On CarSavvi you list your car for free, verified UK dealers bid on it, and you take the best offer. Because the dealers know they are competing, the offers tend to be stronger than a single trade valuation.

Running the numbers

Here is a simple way to compare the two routes fairly.

• Get a firm figure for selling your car on its own
• Get the new car price with no part exchange included
• Then ask the dealer for the new car price with your part exchange
• Compare the total cash you part with in each case

If selling separately leaves more money in your pocket after the extra effort, it is worth doing. If the gap is tiny and your time is tight, part exchange may still win.

When part exchange makes sense

Part exchange is not always the wrong call. It can be the better choice when:

• Your car has faults that would put off private buyers
• You want the deal done in a single afternoon
• The dealer offers a genuinely competitive figure once you have compared it
• You value convenience more than the last few hundred pounds

When selling first makes sense

Selling before you buy tends to win when:

• Your car is in good condition and in demand
• You have a week or two to let dealers bid
• You want to negotiate the new car on price alone
• You want to see what buyers will really pay rather than accept one figure

The honest answer

For most people in good condition cars, selling separately puts more money in your pocket, and letting buyers compete narrows the gap between effort and reward. Part exchange still has a place when speed matters more than the extra cash.

Before you agree to any part exchange figure, find out what your car is genuinely worth. Enter your registration on CarSavvi to get a free valuation and see what verified dealers will pay.