Walk into an auto dealership these days and you might walk out with a seven-year car loan.
That means monthly payments that last well past when the brake pads give out and potentially beyond when the car gets traded in for a new one. About a third of auto loans for new vehicles taken in the first half of 2019 had terms of longer than six years, according to credit-reporting firm Experian PLC. A decade ago, that number was less than 10%.

For many Americans, the availability of loans with longer terms has created an illusion of affordability. It has helped fuel car purchases that would have been out of reach with three-, five- or even six-year loans.
Just 18% of U.S. households had enough liquid assets to cover the cost of a new car, according to a Wall Street Journal analysis of 2016 data from the Fed’s triennial Survey of Consumer Finances, a proportion that hasn’t changed much in recent years.
Even a conservative car loan often won’t do it. The median-income U.S. household with a four-year loan, 20% down and a payment under 10% of gross income—a standard budget—could afford a car worth $18,390, excluding taxes, according to an analysis by personal-finance website Bankrate.com.

But the size of the average auto loan has grown by about a third over the past decade to $32,119 for a new car, according to Experian. To keep payments manageable, the car industry has taken to adding more months to the end of the loan.
The average loan stretches for roughly 69 months, a record. Some last much longer. In the first half of the year, 1.5% of auto loans for new vehicles had terms of 85 months or longer, according to Experian. Five years ago, these eight- and nine-year loans were practically nonexistent.

As a result, a growing share of car buyers won’t pay off the debt before they trade in their cars for new ones, either because the car is in need of repairs or because they want a newer model. A third of new-car buyers who trade in their cars roll debt from old vehicles into their new loans, according to car-shopping site Edmunds. That is up from about a quarter before the financial crisis.
Americans have been borrowing to buy their cars for decades, but auto debt has swelled since the financial crisis. U.S. consumers held a record $1.3 trillion of debt tied to their cars at the end of June, according to the Federal Reserve, up from about $740 billion a decade earlier.
So far this year, dealerships made an average of $982 per new vehicle on finance and insurance versus $381 on the actual sale, according to J.D. Power, a data and analytics company. A decade earlier, financing brought in $516 per car and the sale made dealers $837.
