
Some new cars are equipped with a spare tire and corresponding tools, which can be used to replace a flat tire. However, many models do not come with a spare tire, such as all BMW models and most Mercedes-Benz series. Below is a detailed introduction to spare tires: Types of spare tires: Spare tires are generally divided into two types: full-size spare tires and non-full-size spare tires. A full-size spare tire has the same specifications as the regular tires and can replace any problematic tire. A non-full-size spare tire is only for temporary use. Precautions for using spare tires: If a spare tire has not been used for a long time, it should be replaced promptly. After four years, the spare tire needs to be replaced. Even for a full-size spare tire, speed should be controlled when driving on highways.

As a veteran driver with twenty years of experience, I recently noticed a significant change in spare tire setups when switching to a new car. In the past, cars always came with a full-size spare tire in the trunk, but now many new models only provide a compact spare tire or eliminate it entirely, replacing it with tire repair kits and sealants. When I bought my new car, the salesperson explained that this was to reduce vehicle weight, save fuel, and free up space—some electric vehicles like Tesla don’t even include a spare tire. Personally, I find this a bit inconvenient, especially on long trips, as not having a spare makes emergency repairs more troublesome. Compact spares are only for temporary use and shouldn’t be driven at high speeds. Fortunately, the manual includes detailed emergency procedures, and I’ve made a habit of carrying a portable air pump. I’d advise new buyers to always clarify the configuration before purchasing—don’t just focus on the exterior.

A newbie who just bought their first car was excited to unbox it, only to find no spare tire in the trunk—just a small toolkit. The salesperson explained that it's now trendy to use tire sealant with an air pump, which can quickly repair punctures and is designed to be more eco-friendly and fuel-efficient. I tried it once on a small puncture, and it worked, but I'm still uneasy, worried about being stranded with no way to change a tire. Many new cars are like this now—like my compact SUV, which has more space but relies on a mobile app to learn emergency procedures. I hope manufacturers provide more training to give new owners peace of mind.

As someone who follows automotive industry trends, I've noticed a widespread adjustment in spare tire layouts for new cars. Many brands like Toyota and Hyundai are switching to emergency tire repair kits to reduce weight and emissions; new energy vehicles like BYD are eliminating spare tires altogether to improve efficiency. Checking the vehicle configuration before purchase is crucial, as some models still come with compact spare tires but with speed restrictions. Based on my research data, this change can save about 5% in fuel consumption, though it requires using sealant compounds. When traveling, it's advisable to carry some tools just in case. Understanding these changes can help you choose more practical vehicle models.


