What does B-segment sedan mean?

[SanArabella]

B-segment sedan refers to mid-size cars, typically with a wheelbase ranging from 2.7m to 3.0m, body length between 4.8m to 5.0m, and engine displacement usually from 1.5L to 2.5L. Vehicle classification is primarily based on parameters such as wheelbase and weight - the later the letter in the alphabet, the longer the wheelbase, greater the displacement and weight, and higher the luxury level of the sedan. Generally, vehicles are classified into six categories: A00-segment, A0-segment, A-segment, B-segment, C-segment, and D-segment, corresponding to micro cars, subcompact cars, compact cars, mid-size cars, full-size cars, and luxury cars respectively.