Why do BMW cars have run-flat tires? What is the handling of the BMW 3 Series?

BMW has always been a favorite car model for many female friends. Whether it is the handling, interior, or appearance, it is very grand and excellent. Under the one-sided propaganda of automobile manufacturers, some car owners think that run-flat tires are very advanced and safe, but ignore the risks of run-flat tires. Next, let's see why BMW cars are equipped with run-flat tires? I hope you will understand after reading this.

Contents of this article

1. Why are BMW cars equipped with run-flat tires?

2. What is the good handling of the BMW 3 Series?

3. What is the difference between the BMW 5 Series and the BMW 3 Series?

Why do BMW cars have run-flat tires?

1. First of all, we need to know that run-flat tires do not mean they will not burst, but when a car has a burst, its thicker sidewall can support the car to continue driving for a distance when the tire is deflated. If a normal tire bursts, it is very dangerous at high speeds, and a burst is one of the most common reasons for a car to break down on the roadside. In some remote areas, a burst will be a very troublesome thing.

2. BMW uses run-flat tires because of their safety, reliability and convenience, which can better ensure the safety of the owner's travel. According to the instructions in the BMW user manual, after a tire bursts, the car can continue to travel about 80 kilometers at a speed below 80 kilometers per hour. Run-flat tires are higher-grade and more advanced, which can better show the owner's temperament and modify the characteristics of the car with their advantages. This is also the reason why BMW uses run-flat tires.

3. In addition, another reason why BMW models use run-flat tires is that BMW cars do not have spare tires, and not having spare tires is a major trend in the future. Removing spare tires can reduce the weight of the car to a certain extent, thereby improving fuel efficiency. Therefore, equipping run-flat tires will also be a trend.

Under the one-sided propaganda of automobile manufacturers, some car owners think that run-flat tires are very advanced and safe, but ignore the risks of run-flat tires. Since the car is equipped with run-flat tires, removing the spare tire will increase the risk of the car owner being trapped; in addition, the sidewall of the run-flat tire is harder, and tire leakage is not easy to detect. If you continue to drive for a long time with low tire pressure or zero tire pressure, it may cause serious damage to the tire or wheel hub. It is best to install an active tire pressure monitoring system.

What is the handling of the BMW 3 Series?

The BMW 3 Series has good handling performance in many aspects. First of all, the chassis: the further development of damping technology, the modified chassis and the more complex steering wheel ensure a stronger handling experience and more driving pleasure for the BMW 3 Series. The fine-tuning of the suspension enhances the longitudinal and lateral characteristics. In addition, its steering accuracy is improved, rolling motion is reduced, and directional stability is optimized. The BMW 3 Series is also impressive for its reliable grip, excellent handling and outstanding flexibility.

Secondly, the BMW 3 Series is equipped with an 8-speed manual sports transmission that can adapt to personalized driving styles. In addition to automatic gear selection, it can also be manually shifted at any time with the help of the shift indicator, and the driver can also shift gears by using the shift lever or the shift lever on the sports leather steering wheel. In the "SPORT" sports mode, the shift configuration is aimed at achieving maximum performance, and the faster engine speed transition between gears ensures powerful acceleration. The launch control function adjusts the ideal engine starting speed, enabling it to achieve greater starting acceleration, and the engine can always reach a very high power output speed at any time.

What is the difference between the BMW 5 Series and the BMW 3 Series?

1. Different interiors. BMW has always maintained a driver-centric design concept for its interiors, which is reflected in both the new 3 Series and the current 5 Series. Sitting in the driver's seat, you will experience the ultimate ergonomic design, and the layout of all screens and buttons is very reasonable and within reach. Although the design is different, the overall workmanship and materials of the 5 Series interior are still more upscale than those of the 3 Series.

2. Different power. The new 3 Series is equipped with a B48 engine and an 8AT gearbox. The 325 model has a maximum power of 135kw and a peak torque of 300N·m. The 330 model has a maximum power of 190kw and a peak torque of 400N·m. The BMW 5 Series 525 model also has a B48 engine, with a maximum power of 135kw and a peak torque of 290N·m.

3. The acceleration time and fuel consumption of 0-100 km/h are different: the acceleration time of BMW 3 Series is 9.8 seconds (0-100 km/h), and the fuel consumption is 8.0 liters/100 km; the acceleration time of BMW 5 Series is 8.6 seconds (0-100 km/h), and the fuel consumption is 9.4 liters~12.1 liters/100 km.

The difference between the BMW 5 Series and 3 Series is their positioning. The BMW 3 Series is a sporty B-class car, while the 5 Series is a luxury C-class car. The two are not in the same class.