Cruising Toward Ownership: 5 Essential Facts About Financing a Car

Anthony McGrath • January 5, 2026

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For many buyers, the financial side of purchasing a vehicle is intimidating. It involves credit scores, interest rates, and confusing acronyms. It’s easy to just nod along with the finance manager and sign wherever they point, just to get the keys faster.


A car is likely the second-biggest purchase you’ll ever make. Going in uninformed can cost you thousands of dollars over the life of your loan. Before you step onto the lot, arm yourself with these five essential facts about financing a car.

1. The "Monthly Payment" Trap is Real


If there is only one thing you remember from this post, let it be this: Do not negotiate based solely on the monthly payment.


Salespeople often ask, "How much are you looking to spend a month?" This seems helpful, but it’s a tactic used to distract you from the total cost of the car. A dealer can easily make a £35,000 car fit into a £400 monthly budget by stretching the loan term out over six or seven years.


While that monthly number looks appealing, you end up paying vastly more in interest over time. Instead, negotiate the total "out-the-door" price of the vehicle first. Only discuss monthly payments once the final price is set.



2. Your Credit Score holds the Keys to Your Rate


Your credit score is the single biggest factor determining your interest rate (APR). The difference between a "good" score and a "fair" score can mean huge savings or huge costs.


For example, on a £25,000 loan, a borrower with excellent credit might secure a 4% APR, while someone with poor credit might face 14% or higher. Over a five-year loan, the person with the lower rate saves thousands of dollars in interest.


Before shopping, check your credit report for errors and know where you stand.



3. Longer Loan Terms = More Expensive Cars


A decade ago, the standard car loan was typically 48 or 60 months (four or five years). Today, it is increasingly common to see 72-month (six years) and even 84-month (seven years) loans.

As mentioned in Fact 1, longer loans lower your monthly payment.


However, they drastically increase the total interest you pay. Furthermore, longer terms increase the risk of becoming "upside down" on your loan meaning you owe more on the car than it is currently worth. Try to keep your loan term as short as your budget allows, ideally no more than 60 months for a new car.



4. The Dealership isn't the Only Lender in Town


Many buyers assume they have to finance through the dealership. While dealer financing is convenient, it’s one-stop shopping, it’s rarely the cheapest option.


Dealerships often act as middlemen for lenders and may mark up the interest rate to make a profit.


Before you go car shopping, visit your local bank or credit union and get pre-approved for an auto loan. This basically gives you a "blank check" up to a certain amount and a locked-in interest rate. You can then take that rate to the dealer and see if they can beat it. If they can’t, use your pre-approved loan.



5. The Down Payment is Your Defence


In an era of "sign and drive" zero-down offers, putting cash upfront seems old-fashioned. But a substantial down payment is your best financial defence.


Putting money down (experts recommend aiming for 20%, though even 10% helps significantly) does three things:


  1. it lowers your monthly payment,
  2. it reduces the total interest you pay,
  3.  it provides immediate equity in the vehicle,


protecting you from being upside down right off the lot.

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