
Many cars only have two airbags for the following reasons: High cost of airbags: Generally, there is one each in the driver and front passenger positions of the vehicle to protect the front-seat occupants. In the event of a severe collision, they provide protection for the front-seat passengers. This distribution is the most economical but can only protect front-seat passengers in frontal collisions. In cases of side impacts or rollovers, it cannot provide effective protection. Presence of seat belts: Among all the safety configurations in a car, the seat belt is the most effective in protecting occupants. Therefore, most vehicles are equipped with only two airbags, but they still provide a certain level of safety protection.

I think it's mainly due to cost control. As someone who frequently follows automotive industry trends, I've noticed many entry-level models only come with two airbags for the driver and front passenger, all driven by pricing factors. The airbag units themselves are expensive, and they require additional sensors and control modules, with each extra one adding hundreds of dollars in material costs. To reduce prices and ensure sales volume, manufacturers often opt for basic configurations in economy cars. In budget-conscious markets, consumers prioritize fuel efficiency or exterior styling over the number of airbags, so dual airbags meet basic needs while keeping costs lower. Although they provide insufficient protection in side collisions, statistics show frontal accidents are most common, and dual airbags effectively reduce fatal injuries. In the long run, as safety regulations tighten and consumer awareness increases, premium cars have already added more airbags, but entry-level models still rely on this streamlined strategy to remain competitive.

From the perspective of safety regulations, I understand that many regions only require two front airbags for new vehicles to meet testing standards. Manufacturers design to the minimum requirements to avoid additional costs; for example, in some developing countries where side airbags aren't legally mandated, they only install basic configurations. This doesn't mean it's unsafe—dual airbags effectively protect core areas in frontal collisions, though their coverage is limited. Compared to stringent ratings like Euro NCAP, high scores reward multi-airbag setups, but entry-level vehicles have different priorities, with companies focusing on compliant sales. During my research, I found many car buyers don't understand airbag differences, assuming dual airbags suffice, yet must actively avoid side-impact risks while driving. Ultimately, regulations are the fundamental driver—they ensure baseline safety while leaving room for cost reduction.

I'm passionate about the evolution of automotive technology, with airbag development being a prime example. In the early 1970s, only driver-side airbags existed; it wasn't until the 1990s that front passenger airbags were added, making dual airbags a conventional standard. Although technology has advanced today, introducing new features like side and curtain airbags, most budget vehicles retain the original design to cut costs, as complexifying sensor systems would increase manufacturing expenses. In frontal collision scenarios, dual airbags still deploy rapidly to absorb impact and protect the head, proving reliably effective. Manufacturers optimize these basic airbag structures to make them more efficient and durable. While demand for comprehensive protection grows, affordable models prioritize simplicity as an entry point—a strategy aligned with market dynamics. Future innovations will gradually popularize more options.

As an experienced car owner who has driven many vehicles, I deeply understand that the main reason cheap cars only come with two airbags is to save costs and simplify things. When buying a low-priced car, I care more about the price tag and maintenance costs, and additional airbags might increase insurance premiums, so manufacturers only include the essentials. While the protection may be weaker in high-speed side collisions, frontal impacts are most common in urban commuting, and dual airbags are sufficient to mitigate the risks. A friend of mine who bought such a car said it's adequate for daily use, though it requires more attention to the driving environment. Consumer preferences drive the market, and when budgets are tight, price takes priority over advanced safety features, leading manufacturers to simplify configurations. From a user experience perspective, this is a reasonable trade-off, but I recommend regularly checking the airbag system to ensure it functions properly.


