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at the 2024 chengdu auto show, bmw brought out a strong product lineup as usual. among them, the new bmw m5, which made its debut in china, can be said to be the most important one in terms of product positioning and status in the hearts of fans, and it is worthy of being the "focus of the whole scene". the new bmw m5 not only has a hotter performance appearance and more advanced intelligent digital technology, but also is equipped with the m high-performance hybrid system for the first time, which makes the power performance and driving pleasure reach new heights.

during the chengdu auto show, we also had an in-depth understanding of the r&d concept and process of the new bmw m5 from mr. dirk häcker, senior vice president of bmw m r&d. it can be said that each generation of bmw m5 is a milestone work, and the significance of this new bmw m5 is particularly significant.

the obvious reason is that this generation of m5 first used the m high-performance hybrid system. in fact, similar important innovations can be found in every generation of m5: from the first generation of bmw m5 (e28) that pioneered high-performance four-door sedans, to the second generation e34's innovative engine technology, the third generation e39's first m-developed v8 engine, the fourth generation e60's first f1-derived v10 engine, the fifth generation f10's first v8 m twinpower twin-turbocharged technology, and the last generation f90's first m xdrive intelligent all-wheel drive system and 8-speed m steptronic manual transmission, each generation is equipped with the strongest and most advanced power system of bmw m at the time.

the new bmw m5 brings us the high-performance hybrid technology derived from the bmw m hybrid v8 racing car of the 24 hours of le mans, making it the first high-performance hybrid sedan of bmw m. the m hybrid drive system consists of a 4.4-liter m-exclusive high-performance v8 twin-turbocharged engine and a high-performance motor, with a maximum power of 535 kw (727 hp) and a peak torque of an astonishing 1,000 nm.

talking about this new power form, dirk häcker said: "in the early stage of research and development, we decided to vigorously promote electrification, but at the same time we were also considering what kind of internal combustion engine to match such a hybrid system. we don't want the engine displacement to be reduced due to plug-in, so when electrification, we still continue the performance advantages of the previous generation and make a v8 plug-in hybrid system. for m development, performance, power, flexibility, control and other aspects must be taken into account in a coordinated manner."

so what are the characteristics of this high-performance plug-in hybrid? dirk häcker also made a detailed analysis of this. the power output characteristics of the v8 fuel engine at high speed are well known. after the addition of the 145-kilowatt output motor, the drive system of the new bmw m5 can provide more torque output in the low-speed area. on the other hand, even if there is no electricity, this car can run at the highest speed. dirk häcker particularly emphasized that their goal is to make the driver feel no difference between using oil or electricity. on the basis of the existing powerful fuel engine, the power output of the electric motor is used to make oil and electricity seamlessly integrated.

in this way, the v8 engine + motor can be used to maintain pure driving pleasure and emotional driving experience on the one hand; on the other hand, through electrification, faster acceleration, higher torque, and efficient power performance can be achieved. therefore, after adopting plug-in hybrid technology, the powerful power system of the new bmw m5 can burst out strong power at all speeds, that is, accelerating from a standstill or low speed, you can go full throttle and sprint at full speed, and you won't even feel any turbo lag. this power system is particularly advantageous at medium and high speeds: for example, the acceleration performance between 80-120 kilometers per hour is 0.3 seconds faster than the previous generation m5 thunder edition, and even 0.1 seconds faster than the previous generation's strongest version m5 cs.

another issue that everyone is concerned about regarding this high-performance plug-in hybrid system is the increase in vehicle weight. in this regard, dirk häcker also said that in terms of lightweighting, the new bmw m5 also uses a lot of lightweight technologies, such as carbon fiber roof and carbon ceramic brake system. the carbon fiber roof not only effectively lowers the center of gravity of the vehicle, but also reduces weight by 30.45 kg compared to models equipped with panoramic sunroofs; the m carbon ceramic brake disc has a lighter weight and can significantly reduce about 25 kg. in addition, engineers optimized the longitudinal and lateral stiffness of the double wishbone front axle of the chassis suspension, and the use of aluminum components also reduced the unsprung mass. the five-link rear axle also uses components specially designed for the model. the innovative steel plate structure of the forged connecting rod and wheel frame, like the aluminum rear axle subframe, effectively reduces the unsprung mass.

as the saying goes, "horsepower is easy to get, but driving fun is hard to find." the spiritual core of the new bmw m5 is not only the pursuit of power parameters, but also the core essence of all-round driving pleasure. its adaptive m sports suspension is equipped with electronically controlled dampers and an integral active steering system, which can achieve a more precise and linear sports control experience. in addition, in dirk häcker's opinion, the rear wheel steering angle should not be too large, so that the driver does not have to worry about unexpected steering ranges or uncontrollable situations when pursuing ultimate control, so that there can be a more ideal driving experience of human-car integration.

the excellent driving performance of the new bmw m5 is also inseparable from the strong r&d and testing capabilities of the m department. more than 600 bmw m r&d personnel are involved in the development of the new car, and each car will have about 20 to 25 engineers responsible for test driving and chassis tuning testing. many team members are m car owners themselves. they are both r&d engineers and car fans. therefore, they will bring their emotions and passion to work, and continuously improve and enhance the driving dynamics of the vehicle through testing, forming a joint force together.

the development of the new bmw m5 began four years ago, and testing began two and a half years ago. from the 72 bends of the nürburgring nordschleife to the ice and snow and extreme cold of arjeplog, sweden, a total of millions of kilometers of testing around the world were completed, ultimately achieving the ultimate control of the integration of man and car. dirk häcker said that whether you drive this car or sit in it, everyone is welcome to go to the nürburgring for a test drive and experience it for themselves. i believe everyone will feel the amazingness of the new bmw m5.

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