Even if they are the same, there will be "320i" and "320Li" at the rear of the car. You should know that those marked with "320Li" at the rear should also have the word ""because it is a long version. If you know something about it, you should also know that ""and "iDrive" represent two different kinds. However, it’s a little hard for you to look at a logo at the end and make it clear that it’s consistent. Will it be a little difficult for you not to check the information?
For the digital label at the tail, many people just know its meaning. Simply put, the bigger the last two digits, the better the car will be. Someone also said that the last two digits represent the size of the engine, which may make sense on the 316i and 320i/320Li, but the 328i and 328Li are also equipped with the same 2.0TN20B20 engine. Why are the last two digits so big? This is because their engine tuning is different, but how can we see whether the engine tuning of this model is high or low from the digital mark at the tail? Please see below.

Figure: The previous generation of 316i is unprecedented abroad. "16" means equipped with a 1.6T low engine and 136Ps.

Figure: "20" means equipped with a 2.0T low engine, 184Ps.

Figure: "25" indicates that it is equipped with a 2.0T medium engine with 218Ps.

Figure: "28" is equipped with a 2.0T high engine, 245Ps.

Figure: "30" means equipped with a 3.0L naturally aspirated engine, 258Ps. Yes, the "D" at the back also means using Diesel power.

Figure: "35" means equipped with a low engine, 306Ps.

Figure: "40" means equipped with a high engine, 320Ps.

Figure: "50" means equipped with 4.0T or 4.4T engine, 408Ps or 407Ps.

Figure: "60" means equipped with 6.0T engine, 544Ps.
Take 320Li as an example, the first letter "3" indicates the series of this car, the second part "20" represents the engine version used by this car, "L" stands for the longwheelbase, and "I" stands for the fuel-injected model, in which F30 is the short shaft version and F35 is the long shaft. Including 316i, 320Li, 328Li, 335Li;; 320i、328i、335i、320i、328i、335i。
There are no so-called "long" models in foreign countries, but only F30, F31 and F80. However, when F35 arrived in the domestic market, it was treated more warmly than F30. This change may be funny to us, but it is more because F35 can better capture the hearts of Chinese people.

Figure: 118i represents the 1.6T high engine, 170Ps. In contrast, the 116i is equipped with a 1.6T low engine and 136Ps. The "I" at the end indicates the engine.
Although 320i and 320Li are the same, they are still different in code name. The code name of 320i is F30, which means short axis version. The code name of 320Li is F35, which means long axis version.

Figure: 320i(F30). "20" means equipped with a 2.0T low engine, which is 184Ps.

Figure: 320Li(F35). It is also equipped with a 2.0T low engine of 184Ps, and the difference is this "L".

Figure: 335Li(F35). Similarly, this "L" has also sold its domestic identity.

Figure: The letter "C" in 645Ci stands for "Coupe" two doors, and the last use of this name was on the models of (E46) and (E63).

Figure: 330dTouringModernLine(F31), "T" means Touring (Travel Edition), including Wagon and Eseate.


Figure: Ti model of (E46). The so-called "Ti" refers to the hatchback.

Photo: 530xi(E60) is equipped with the 5 series of the system, so you will also see the model with XXXXi written on the rear of it in the early days abroad.
I don’t know if readers will understand that Xiaobian mixed the M series in the chapter of "letter meaning", because the model marked by M represents the high-performance version of the car series. The company (German: BMWmbH), formerly known as BMWMotorsportGmbH, is a subsidiary of the German manufacturer group, and its earliest history can be traced back to 1972. Originally known as M Department, the company was originally a special department specially set up to participate in motor racing, but later it gradually turned into a unit specializing in the development of original high-performance cars (M series) and original performance modification kits. In 1992, the M department was separated and a subsidiary, BMWMotorsportGmbH, was established, and the company name was simplified the next year to become today’s BMWmbH. The M-series models are original high-performance versions for some of its models. The so-called "M" is taken from the initial letter of "BMWMotorsport", and the models currently on sale include: M2, M3, M4, M5, M6, X3M and X4M.

Figure: The former BMWX5M(E70).

Photo: Surely no one will think it is a real 318i?

Photo: "CSL" stands for Coupe, Sport and Lightweigh. This series of cars is also a pure driver’s car and was born for the track. M3CoupeCSL(E46) produced only 1,400 vehicles from 2002 to 2004.
The early four-wheel drive was not called ADB-X, which followed almost contemporary products. Therefore, the early ADB-X four-wheel drive system is very similar.

Figure: logo.
The early ADB-X four-wheel drive system also adopted three open types: front, middle and back. Power is distributed to each one through these three, and when there is slip, the differential limit is also realized through ABS. But later, the ADB-X was also upgraded to Xdrive, just like the reason for the evolution from the first generation to the second generation, and because of its poor driving performance on the road, Xdrive was introduced in order to upgrade it.

At present, the most widely used intelligent system in China is X series, so we can see its logo from the sides of X3, X4, X5 and X6. However, there are also assembly systems on the 640d and M550d, but this model is extremely rare in China, so you don’t have to worry about it. There is also the logo of sDrive(Rear-wheeldrive), which appears on X118i and mainly expresses the meaning of rear-wheel drive. However, some people may ask, almost all of them are rear-wheel drive, why are there no such signs in the 3 series and 5 series? The manufacturer’s current explanation is that X1 is the only model with rear-wheel drive in the X family, so it is highlighted by sDrive to see the difference with the four-wheel drive models used. As a classic Roadster, Z4 uses sDrive to emphasize its rear drive, dynamics and agility. Therefore, compared with other models, X1 and Z4 want to highlight this point (the above is the official reply of BMW).

Figure: sDrive refers to the rear-drive model. Such as sDrive35i and sDrive18i I.
The first generation iDrive, which appeared in the 2001 model, became the biggest selling point of the 7 series that year. In addition to the characteristics of the times, it also interprets a brand-new, simple, safe and convenient concept of future driving.
At that time, the new 7 Series can provide about 700 functions. If all kinds of switches and function keys are arranged in the traditional way, it will not only be dazzling, but also almost impossible. The innovative solution is to divide these 700 functions into three categories: various operations related to driving, including shifting gears, are reasonably distributed around the steering wheel; Other commonly used basic functions are kept on the computer and operated by traditional switches and buttons, including car phone, air conditioning routine control, audio system routine control, etc. A large number of other functions, including communication, remote network service and some important and very practical comfort functions, are set in a highly integrated central control center. Although there were different voices in the market when it first appeared, soon, other major brands successively introduced similar control concepts.

Figure: iDrive system main page.
EfficientDynamics translated into Chinese means "efficient power", which includes many specific technologies, such as the extensive use of high-rigidity and lightweight materials and the introduction of HPI high-precision in-cylinder direct injection engine technology, ranging from diesel engines to hydrogen energy in the future, all of which belong to the category of efficient power. Nowadays, all the new models in the series are marked with engine start-stop systems, systems, and many intelligent schemes to reduce and reduce carbon dioxide.
EfficientDynamics translated into Chinese means "efficient power", which includes many specific technologies, such as the extensive use of high-rigidity and lightweight materials and the introduction of HPI high-precision in-cylinder direct injection engine technology, ranging from diesel engines to hydrogen energy in the future, all of which belong to the category of efficient power. Nowadays, all the new models in the series are marked with engine start-stop systems, systems, and many intelligent schemes to reduce and reduce carbon dioxide.

Photo: EfficientDynamics, an efficient power that once appeared in the world.

Figure: The comprehensive use of lightweight but high-strength materials not only improves the economy, but also enhances the driving pleasure. In addition to the car body, it is also planned to design the future aluminum alloy forging into a hollow shape, and inject silicide foam into it to reduce the weight while keeping it hard.

Figure: N20B20 engine with this technology is more efficient than the previous generation 3.0-liter inline six-cylinder naturally aspirated engine.

Photo: BMWHydrogen7, a mass-produced hydrogen-powered RV, has 260Ps and a top speed of 230km/h, and can complete 0-100km/h acceleration performance in 9.5 seconds.
Except for the old models, from the smallest MINI to the largest X5, a set of automatic transmission system named STEPTRONIC is basically used. This gearbox comes from ZF, an expert, and it is also the most popular automatic transmission system in the world. Although STEPTRONIC has a manual gear shifting mode, it is actually the same as other similar gears, but it has done some tricks in computer control. In control, several electromagnetic valves are used to force the oil circuit to open or close, so as to realize manual control to change different gears, which is a far cry from the actual sense. Below the word S is the mode selection key, and there are as many as 11 shift modes.

Figure: There is still a slight difference between the S and other models, that is, the upshift is in the back and the downshift is in the front. These designs are very in line with human driving mechanics.

Figure: The simplest S work flow chart.
A year after E36 M3 was retired, the new E46M3 was born. At first, it was only equipped with the traditional six-speed gearbox, but in 2002, a set of wholeheartedly improved semi-accessories named SII was listed as an option for M3 owners. This system changed the shortcoming of slow gear shifting, and under the control of sophisticated computer management system, the gear shifting speed could reach the ultra-fast level of 0.08 seconds at the earliest. You know, an ordinary driver who has been trained in professional racing has a shift speed of only 0.3 seconds, which is several times faster than that of a professional racing driver. It can be said that it is impossible for ordinary people to use cars in ordinary streets, but it gives people this opportunity.

Figure: E46M3 profile with SII system.
Today’s car series is no longer so "simple", and its 2 series and 4 series are split from the original 1 series and 3 series. As for why the models belonging to the same car family should be "separated", the benefits of this move to the car factory are more that the positioning of coupe/convertible models can be further raised and the pricing can be improved. No matter how the car is divided, the meaning of letters and numbers will not change.

The article is provided by the author.