03/17/2016 04:38 EDT | Updated 03/18/2017 05:12 EDT

Long-Term Car Loans Aren't A Good Idea, Finance Experts Say

You'll pay more in interest for a long-term car loan.

A Dodge Challenger, left, and a Dodge Dart are on display at the Golling Chrysler Dodge Jeep Ram dealership in Bloomfield Hills, Mich., Tuesday, Oct. 22, 2013. Starting Dec. 15, people will pay less in sales tax on a car purchase in Michigan because the value of your trade-in can be counted under a deal between lawmakers and Gov. Rick Snyder. (AP Photo/Carlos Osorio)

OTTAWA — Buying a new car is an expensive proposition that for many Canadians means borrowing money.

But financial experts caution shoppers not to be lured into spending more than they can afford through long-term auto loans that offer lower monthly payments, but ultimately cost more.

Brigitte Goulard, deputy commissioner at the Financial Consumer Agency of Canada, says consumers need to consider more than the monthly payment.

"One of the most common pitfalls we see are people just thinking about the type of car that they want," she said.

Goulard say by extending the term of a car loan to seven or eight years, it will drop the monthly payment, but borrowers will pay more in interest.

"You walk into a dealer and sometimes the first question they'll ask you is how much can you afford monthly," she said.

"You need to think about monthly in terms of the car that you can afford. So if you think you can only afford a small compact, go for the small compact. Don't go for the SUV just because you can afford the monthly payment over eight years."

Goulard says when considering how long it will take to pay off a car, people need to think about long they expect to keep it. If they think they are going to want a new car in four years, they should not be taking out a loan with a term longer than that, she says.

The car people want when they are 25 might not be the car they need when they're 30. An infant car seat may not easily fit into the back seat of that two-door sports car and that could cost you when you find yourself needing a more practical four-door sedan.

While longer term loans will cost more in interest, what may be even more trouble is needing to buy another car before you have paid off the one you're driving.

The FCAC recently said that the country's long-term auto finance market has nearly doubled in the last eight years as the average new car loan last year had a term longer than 72 months or six years, up from approximately 65 months in 2010.

However, despite the longer loans, drivers are still changing their vehicles every four years, rolling the outstanding balance on the previous loan into the loan for the new vehicle.

"You end up paying for a car that you don't own anymore for several years," Goulard said.

Credit counsellor Pamela George says she wouldn't borrow money to buy a new car, but if people are going to, they need to do their homework before walking into a dealership.

"Not just look at the monthly figure and say, 'I can afford this.' Ask yourself, 'How will this impact my savings?'" says George, who works at the Credit Counselling Society in Ottawa.

George said if people feel they must take a loan, try to make a large down payment.

"If you can go in with a down payment and assume part of the risk, then I'm sure you now have negotiating power," she said.

To help car shoppers, the FCAC provides information and tips on its website.

Goulard says be sure to shop around for financing when buying a new car.

"You can go directly to a bank. You can go directly to a credit union. There's various lenders in the market."