The Broken Economics of the Car Rental Business

The fees aren't a bug. Neither is the upsell pressure, the mystery damage charge, or the car that somehow wasn't available even though you booked it three weeks ago. A recent episode from the Modern MBA YouTube channel makes a case that's harder to dismiss than most industry explainers: the rental car experience is miserable because the rental car business is structurally broken, and no amount of app design or peer-to-peer disruption changes that underlying reality.

It's an argument worth sitting with, because the instinct — to blame corporate greed, weak regulation, or simple incompetence — turns out to miss most of the picture.

Two Numbers That Run Everything

At the center of the Modern MBA analysis is a deceptively simple framework. Every rental car company lives or dies by two variables: utilization (what share of its fleet is earning money on any given day) and residual value (what those same cars fetch in the used market when it's time to sell them).

The tension between those two numbers is genuinely punishing. The more miles a car logs, the more revenue it generates — and the faster its value falls. Rent it out less to protect the resale price, and you're bleeding carrying costs while time does the depreciating anyway. "Everything rides on two numbers," the video states plainly. "Utilization is efficiency. Residual value is how much the same cars are worth in the used market when it's time to sell. And the challenge is to time that sale as close to the peak as possible."

Miss on either number across a fleet of hundreds of thousands of vehicles and you're looking at serious losses. Nail both, and you've covered your next fleet purchase with a thin margin left over. That's the good outcome.

What makes this harder than it sounds is that rental companies control neither input directly. New car prices are set by automakers. Used car prices are set by a separate market entirely. The cost of debt moves with the Fed. End demand tracks the broader economy — air travel, employment, inflation, all of it. The Modern MBA framing is precise: rental companies are "placing leverage bets every year in advance across four markets and need to hit every single one to make profit."

That's not a business. That's a parlay.

Detroit's Hidden Subsidy

For most of the 20th century, rental companies survived this structural trap because they didn't have to manage the residual value problem themselves. Detroit did it for them.

Through an instrument called "program cars," GM, Ford, and Chrysler sold vehicles to Hertz and Avis in bulk at below-sticker prices — and bundled in a contract promising to buy those same cars back at a fixed price on a future date. The automakers absorbed the depreciation risk. Rental companies only had to worry about utilization.

The reason Detroit accepted this lopsided arrangement has nothing to do with generosity. The big three automakers measured themselves on units sold, and Wall Street rewarded volume above all else. Rental fleets were the fastest way to inflate those numbers: book hundreds of thousands of cars as sales in a single quarter, defer the residual loss for years. The Modern MBA episode calls it "growth by accounting where volume got pulled forward and costs got pushed out."

Labor made it worse. The Jobs Bank program — negotiated with autoworker unions — meant that laid-off workers still collected 95% of their wages. An idle factory cost nearly as much as a running one. The rational move became keeping lines running regardless of actual demand, which meant building cars nobody had ordered, which meant needing somewhere to put them. Rental fleets became Detroit's private overflow valve.

It worked, after a fashion, until it didn't. By 2008, fuel prices cratered the resale value of trucks and SUVs. Ford absorbed more than a billion dollars in lease losses. Chrysler shut down its leasing operation entirely. The following year, GM and Chrysler went bankrupt. With the Jobs Bank eliminated in the restructuring, overproduction no longer made financial sense, and the automakers walked away from their buyback commitments. For the first time in generations, rental companies were on their own — holding the full depreciation risk of their fleets with no backstop from Detroit.

That risk hasn't moved since.

The EV Bet That Went Wrong

The residual value problem revealed itself most painfully in the rental industry's push into electric vehicles. In the early 2020s, Hertz ordered hundreds of thousands of Teslas and committed to further EV purchases from GM. Avis moved more cautiously but still made significant bets on the category.

Both sides of the utilization-residual equation collapsed simultaneously. EVs proved far harder to repair than gas cars — Teslas in particular are so vertically integrated that ordinary mechanics couldn't service them, and battery damage from even minor collisions generated repair costs and timelines that kept cars off the road. Utilization suffered. Then the residual value side cratered. EVs depreciated roughly twice as fast as gas cars. Battery degradation concerns suppressed used-market demand. Tesla's repeated cuts to new-car prices hammered the value of every used model sitting in rental lots.

According to Modern MBA, Hertz disclosed losses of $200 million on its EV program. The video attributes comparable losses to Avis but does not cite a public filing for that figure, so it's worth treating that specific number as the channel's characterization rather than verified reported results. The directional reality — that both companies took significant EV-related hits — is consistent with what both companies have disclosed publicly.

The episode draws a clean lesson from the wreckage: even if a perfect rental car existed — cheap, reliable, strong residual value — every competitor would buy the same car. The advantage dissolves immediately. "The type or performance of a car is really only an edge for the automaker and not for the rental company that provides a commodity service."

The Airport Exception

There is one place where rental car economics work reasonably well: airports. Corporate travelers on expense accounts, leisure travelers who just deplaned and need a car now — that's a genuinely captive audience with compressed price sensitivity. The physical structure of most airports also limits the number of operators, which reduces the all-out price wars that characterize off-airport competition.

Outside the airport, it's different. Rental cars are a perishable product in the same sense as airline seats or hotel rooms — an unrented car earns nothing while still depreciating — and that forces constant pressure to fill inventory at almost any price. When one major player discounts, the others match within hours. The industry oscillates, as the Modern MBA analysis puts it, between "an all-out price war at one end or tacit collusion at the other."

That dynamic is why Zipcar — acquired by Avis in 2013 for $500 million, per reporting by The Guardian — never became the urban disruption story it was supposed to be. Hourly rentals made high utilization nearly impossible. The round-trip requirement meant the service could only serve people who lived immediately adjacent to a parked vehicle. A decade later, Avis has quietly wound down Zipcar's UK operations and scaled back domestically. The $500 million bet hasn't paid off.

The Peer-to-Peer Trap

If owning a fleet is the problem, getting rid of it seems like the obvious solution. That's the pitch behind Turo, Getaround, and Zoomcar: offload the cars to individual owners, take a cut of each booking, and operate as a software intermediary with none of the capital exposure.

The public markets have not been persuaded. Getaround listed in 2022 and was removed from the New York Stock Exchange within two years; it has since exited the US market. Zoomcar was delisted from the Nasdaq within 18 months and now trades as a penny stock. Turo withdrew its own IPO filing after watching both competitors struggle.

The reason, as Modern MBA explains it, is that the asset-light model doesn't eliminate risk — it trades one set of risks for another. Legacy rental is a leveraged bet on used car values. Peer-to-peer is a leveraged bet on insurance and liability. Every trip is a potential claim, with exposure on both sides of the transaction. Insurance costs don't scale favorably. "As Turo grew, its unit economics ran the other way as claims outrun fees."

There's also an irony buried in the asset-light pitch. A fleet — actual physical cars with titles — is collateral. You can borrow against it, and when things go wrong, you can sell into a real market. Peer-to-peer platforms own nothing and therefore have nothing to liquidate when venture funding dries up. "When you own nothing, you control nothing," the episode observes. "And you can never guarantee the supply, quality, reliability, and pricing needed to bring a customer back."

What the Fees Are Actually Paying For

None of this makes the damage charges or the insurance upsells feel less obnoxious at the counter. But understanding the mechanics does shift the frame slightly. The nickel-and-diming isn't primarily about corporate greed manufacturing profits from a healthy business. It's the opposite: a structurally thin business extracting margin wherever it can find it because the core model can't generate enough on its own.

Rental companies have essentially one lever — price — and they can't pull it freely without triggering a matching response from every competitor. The fees, the add-ons, the recovery charges: those are the pressure release valves. They exist because the base rental rate can't carry the business alone, and because the alternative to squeezing margin from customers is squeezing it from a depreciation curve that's already working against you.

Whether that's a satisfying explanation or a maddening one probably depends on how your last rental went.

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Dorothy "Dot" Williams covers small business and Main Street economics for Buzzrag.