
According to the standards in mainland China, they are classified into: micro sedans (displacement below 1L), compact sedans (displacement between 1.01.6L), midsize sedans (displacement between 1.62.5L), full-size sedans (displacement between 2.5~4.0L), and luxury sedans (displacement above 4L). Generally, cars come in standard, low, medium, and high configurations, which refer to: 1. Low configuration: Usually a simplified version, lacking features such as leather seats, power windows, and many electronic control functions. 2. Standard configuration: Includes basic electric controls like power windows, power steering, and air conditioning. 3. Medium configuration: Slightly more advanced than the standard configuration, including all standard features and possibly additional features like airbags, sunroof, leather seats, power seats, and seat heating. 4. High configuration: More advanced than all the above configurations, often considered the flagship version of the model.

I previously compiled a classification of common sedans, mainly based on body structure. The traditional three-box sedan has a separate trunk, like the Sylphy and Corolla, which are typical family cars. The hatchback integrates the trunk with the cabin, featuring a large opening, making it very convenient for loading luggage, like the Golf. The station wagon extends the roof of a three-box sedan, with the rear window stretching all the way to the tailgate, exemplified by the Volvo V series. The liftback is a variant of the hatchback, where the rear window can be fully opened, similar to the Audi A5 Sportback. Finally, there are convertibles, which come in soft-top and hard-top versions, like the MX-5, a soft-top roadster particularly popular among young people. Different models offer quite distinct driving experiences.

Many people overlook the importance of size classification when choosing a sedan. A-segment cars are compact, with a wheelbase of around 2.4-2.6 meters, such as the Civic, which is suitable for small families. B-segment cars are mid-sized, offering much more spacious rear seating like the Camry and Passat. C-segment belongs to the executive class, with a length exceeding 4.8 meters—models like the Audi A6 provide enough rear legroom to cross your legs comfortably. D-segment represents luxury flagship models, where the rear cabin of a Mercedes-Benz S-Class can practically serve as an office. There are also classifications based on drivetrain: front-wheel-drive cars save space and are cost-effective, rear-wheel-drive offers better handling, while all-wheel-drive is mainly practical in snowy northern regions. Nowadays, hybrid sedans like the Corolla have also emerged as a distinct category in the new energy vehicle segment.

From a practical usage perspective, it's more down-to-earth. Family sedans prioritize fuel efficiency and durability, with models like the Lavida selling tens of thousands monthly being most typical. Sports sedans like the BMW 3 Series feature stiffer chassis tuning, with rear-wheel drive providing exceptional cornering stability. The essence of luxury sedans lies in their quietness and material quality - closing the windows of a Lexus ES feels like entering a recording studio. New energy sedans now mainly divide into pure electric and plug-in hybrid types, with the BYD Han pure electric version capable of 600km range, while the plug-in hybrid version barely uses fuel for urban commuting. Recently, fastback sedans have gained popularity, featuring designs like the Civic hatchback while maintaining traditional sedan trunk space.


