B-class cars are mid-range sedans with a wheelbase of 2.7 to 2.85 meters, a curb weight of 1.5 to 1.7 tons, and engine displacements ranging from naturally aspirated 2.0 to 3.0 liters or turbocharged 1.6T to 2.0T. This category represents large family cars and standard business vehicles. Generally, cars are classified into A, B, C, and D classes, with standards varying by country. China lacks a unified standard, but due to German automakers' early joint ventures and market dominance, the German classification method is commonly adopted. Additional details are as follows: 1. Introduction: Car classification originated from Volkswagen's method of categorizing vehicles. It is not an authoritative standard but rather a set of reference values Volkswagen initially developed for its platform strategy, which later became widely used. 2. Classification: When Volkswagen began promoting its platform strategy, it divided vehicle platforms into six levels based on size and positioning: A00, A0, A, B, C, and D. According to the German classification standard: A00 refers to micro passenger cars, A0 to subcompact cars, A to compact cars, B to midsize cars, C to full-size cars, and D to large passenger cars. The classification is primarily based on parameters such as wheelbase, engine displacement, and weight. The further the letter is in the alphabet, the longer the wheelbase, the larger the displacement and weight, and the higher the luxury level of the passenger car.
