Can I modify a car on finance?

Wheels, tow bars, and even floor mats count as modifications. But can you modify a car on finance?

John Evans
Oct 18, 2019

If you have a car on finance you might be wondering what freedom you have to make it your own. Well, seeing as during the process of a car finance deal the car is owned by whoever is lending it to you, you don't really have much at all.

Just as you might redecorate or extend your house when you get bored with it or want to improve it, so you might also be tempted to modify your car. It may be something practical like fitting a tow bar. Or a simple aesthetic change like fitting new wheels to it. Perhaps you're a little more ambitious and instead you want to increase the performance of the engine or change the car’s appearance with a body kit or a vinyl wrap.

Apply for finance on a used car

That’s all fine if you own the vehicle, but if you're half way through paying off a finance agreement or a loan, you could be in serious trouble and at risk of having your contract terminated. In this scenario, best case they take the car and you are left wanting, worst case they demand you pay the full value of the vehicle up front - that could be tens of thousands of pounds.


Read on for more details on the issues surrounding modifying a car on finance.

Can I modify a car on finance?

When you take out a finance deal on a new car, you are essentially borrowing the money to pay for it along with a car itself, so ownership of that car stays in the name of the lender until such a time as you either complete your monthly payments in the case of a hire purchase agreement, or pay the optional final payment if you're on a PCP (personal contract purchase) contract.

In the majority of cases, for that entire period where you are driving the car but not the reigstered owner, you are not allowed to mdofy the car under any circumstances. Some finance providers will allow customers to modify a vehicle, but you must recieve consent in order to do so. After consent has been given, and before the customer returns it, the car must be restored to the condition it was in when the agreement started.

If you paid outright for the car using cash or an unsecured bank loan then you become the registered owner and are free to modify it in any way you wish. However, if you were to default on your loan repayments, the lender could seize the vehicle or other property to recoup its money. Even then, they may not make enough on disposal to settle the outstanding loan (perhaps if the car has been modified), so you might still end up with outstanding debts.

What constitutes a modification on car finance?

Anything that changes the appearance or specification of the car when it was originally acquired constitutes a modification. We’ve already mentioned major changes such as increasing the car’s performance or fitting new wheels. Changing the radio, fitting video screens or fitting a towbar would also constitute a modification.

At the other extreme, a spokesman for BMW Finance told BuyaCar that even swapping the bespoke mats that come with the M Sport pack for another item would constitute a modification. BMW's finance agreement appears to cover any modification, small or large, although the spokesman said changing so-called consumables such as tyres would not be regarded as a modification.

The ins and outs of car finance

Above all, understand that the finance company remains the owner of the car throughout the finance term. You are not buying the car, but borrowing it from the finance company.

Be sure to understand the agreements on mileage and the expected condition of the car, as well as modifications, and how they apply not only at the end of the agreement but during it. This is because at all times during the finance agreement, the car must be worth its predicted value should it need to be disposed of.

Make sure all this is clearly explained to you before entering into the contract – and on no account modify the car without the consent of the finance company.


Read more about:

Latest advice

  1. Car finance: who can be a guarantor?

  2. What is very poor credit car finance?

  3. What is bad credit?