For decades, a spare tire was as much a part of a new car as the steering wheel. It sat quietly under the trunk floor or slung beneath a pickup bed, rarely noticed and hopefully never needed. For a while now, it’s becoming an endangered species.
If you’ve shopped for a new vehicle lately, you may have noticed something missing when you lift that cargo floor. Instead of a full-size spare—or even a compact “donut”—you’re likely to find an air compressor, a can of sealant, and a polite suggestion in the owner’s manual about how to use it. Automakers didn’t eliminate spare tires by accident. There are several reasons, and none of them involve nostalgia.
First and foremost: weight. Every pound matters when manufacturers are chasing fuel economy targets and emissions standards. A spare tire, wheel, jack, and tools can add 30 to 50 pounds. That may not sound like much, but multiplied across hundreds of thousands of vehicles, it becomes significant. Shaving weight improves efficiency numbers, and in today’s regulatory environment, every decimal point counts.
Then there’s cost. A spare tire assembly isn’t free. Eliminating it saves automakers real money on materials, shipping, and assembly. When companies are building vehicles in massive volumes, even small per-unit savings translate into millions of dollars. And while consumers might assume that deleting the spare would lower sticker prices, that’s not how it usually works. The savings tend to stay on the manufacturer’s side of the ledger.
Packaging is another factor. Modern vehicles are more complex than ever. Hybrid systems, battery packs, advanced suspension components, and third-row seating all compete for space. Engineers are under pressure to maximize interior room while fitting in more hardware than previous generations ever required. Removing the spare frees up valuable real estate, especially in smaller crossovers where cargo space is already tight.
The rise of run-flat tires has also played a role. Some manufacturers, particularly luxury brands, have leaned into run-flats as a solution. These tires are designed to support the vehicle for a limited distance after losing air pressure, typically around 50 miles at reduced speeds. In theory, that’s enough to get you home or to a repair shop without ever touching a jack. The trade-off? Run-flats can be more expensive to replace and often deliver a firmer ride.
Tire sealant kits are the more common substitute. They’re compact, inexpensive, and easy to use—at least in straightforward puncture situations. If you pick up a nail in the tread, the sealant can plug the hole long enough to get you back on the road. But they’re not a cure-all. Larger punctures, sidewall damage, or a blowout will render the kit useless. In those scenarios, you’re waiting for roadside assistance.
That leads to another modern assumption: connectivity. Automakers know many drivers carry smartphones and have access to roadside service through insurance companies, automaker programs, or credit cards. The thinking is that fewer people will change their own tire on the side of the road, especially on busy highways. From a safety standpoint, that’s a reasonable argument. Changing a tire inches from traffic isn’t ideal.
Still, there’s a psychological comfort in knowing a spare is back there. It represents self-sufficiency. If you’re driving through rural areas, on long road trips, or far from reliable cell service, a sealant kit can feel like a thin safety net. Pickup trucks and body-on-frame SUVs are more likely to retain full-size spares, partly because their buyers expect them and partly because there’s space to accommodate them. But even in those segments, compact spares and delete options are becoming more common.
Electric vehicles introduce another wrinkle. Large battery packs are typically mounted low in the chassis, consuming the space where a spare might traditionally live. With EVs already carrying significant weight due to their batteries, engineers are reluctant to add anything extra. As a result, many EVs ship without a spare at all.
For consumers, the lesson is simple: don’t assume. If a spare tire matters to you, check the window sticker or physically look before you buy. Some automakers offer a spare as an option, sometimes bundled with a package. In other cases, aftermarket solutions exist, though they may compromise cargo space.
Are spare tires truly disappearing? Not entirely. They’re just no longer standard equipment in many segments. The industry has decided that efficiency, cost control, and packaging flexibility outweigh the perceived benefits for most drivers. Whether that’s progress or penny-pinching depends on your perspective—and perhaps on how far you are from the nearest tow truck the next time you hear that unmistakable thump-thump-thump.
Left to right: 2026 Toyota Corolla FX and 2020 Honda Civic Si HPT. Photo: CarPro.