Why Buying a New Car Might be a Terrible Financial Mistake

It’s an age-old rule of thumb in auto finance: when you drive a brand-new car off the lot, it immediately loses value. But in recent years, the gap between what drivers owe on their vehicle loans and what those cars are actually worth has ballooned.

"Negative equity" or being "underwater" on a car loan is reaching record levels. Yet despite warnings of a impending auto-debt crisis, car buyers keep signing on the dotted line.

In the most recent episode of The AutoGuide Show podcast, we welcome automotive industry analyst Dave Thomas (Director of Content Marketing at CDK Global) who broke down the real numbers behind the negative equity surge, post-pandemic buying habits, and why the market isn't quite as "doom and gloom" as the headlines suggest.

The Reality of Negative Equity

Put simply, negative equity means owing more on a vehicle loan than the vehicle is worth in the current used market. Under traditional financing guidelines (a reasonable down payment paired with a 4- to 5-year term) a buyer typically crosses into positive equity within three years.

Today, however, two primary drivers are pushing more shoppers underwater:

1. Extended Loan Terms: To keep monthly payments manageable, buyers are increasingly opting for 7- or 8-year loan terms (84 to 96 months).
2. Post-COVID Market Distortions: The extreme inventory shortages of recent years created artificial value spikes. Now that the used car market is normalizing, vehicles are depreciating at standard historical rates again—leaving buyers who bought at peak prices with significant gaps in equity.

Why Are Buyers Okay With It?

According to data from CDK Global’s monthly Ease of Purchase study, which surveyed over 1,000 verified vehicle buyers, the motivations behind trading in with negative equity challenge common industry assumptions.

• 34% Just Want the Latest & Greatest: Over a third of underwater trade-ins were made simply because the buyer wanted a new car with modern technology, upgraded features, or fresh styling.
• 14% Had a Growing Family: Life milestones forced the upgrade, regardless of the financial timing.
• Only 16% Were Lowering Payments: A relatively small group traded in out of financial distress or an urgent need to lower monthly expenses.

"These aren't necessarily people who bit off more than they can chew," Thomas explained during the episode. "A huge portion are simply buyers who value having the latest vehicle over maintaining positive equity."

The Death of Leasing & The Rise of "Pseudo-Leasing"

One of the biggest shifts post-pandemic has been the decline of traditional vehicle leasing. During the height of supply chain shortages, high residual values and low inventory made leasing less prominent. As a result, shoppers who historically would have leased—returning the car every three years without equity risk—began purchasing long-term loans instead.

By rolling negative equity from one 7-year loan into another, consumers are effectively treating long-term financing like a continuous lease, but without the built-in protections or clean end-of-term exits that structured leases provide.

Are Cars Actually Unaffordable?

While headlines frequently highlight the average new vehicle transaction price hovering around $50,000, Thomas points out that this figure is heavily skewed by high-margin luxury vehicles, full-size pickup trucks, and specialty models like the Mercedes-Benz G-Class.

When tracking the top 10 best-selling passenger vehicles in North America (including popular compact SUVs and sedans like the Toyota RAV4, Honda CR-V, and Chevy Trax), the average transaction price lands closer to $36,000. Relative to historical inflation, mainstream passenger cars are offering more standard features, safety technology, and infotainment amenities per dollar than at almost any point in recent history.

The real challenge isn't necessarily base MSRP—it's interest rates. A generation of millennial buyers who came of age during an era of perpetual 0% financing options are now adjusting to standard market interest rates, driving up monthly costs even when vehicle prices remain steady.

What Dealerships Are Doing About It

Interestingly, progressive dealership groups are beginning to push back against extreme loan terms. Selling an 84- or 96-month loan might secure a sale today, but it delays the customer's return to the showroom for up to a decade—or damages the relationship entirely if the customer finds themselves severely trapped in negative equity later on.

"The most successful dealers aren't just looking at this month's revenue," Thomas noted. "They are focused on long-term customer retention, and seven- or eight-year loans actively hurt that cycle."

Listen to the Full Episode

Want to hear the complete conversation on automotive retail trends, how inflation metrics compare to real-world car prices, and where consumer sentiment is heading next?