What do B-segment, C-segment, and D-segment cars mean?

[VanTyler]

B-segment, C-segment, and D-segment cars represent different vehicle classes, primarily categorized based on factors such as wheelbase and engine displacement. B-segment: B-segment mid-size passenger cars have a wheelbase ranging from 2.7 to 2.9 meters and engine displacements between 1.8 and 2.5 liters. Models such as the Mazda6, Accord, Mondeo, Sonata, Audi A4, Passat, and Toyota Camry all belong to the B-segment category. C-segment: C-segment premium passenger cars feature a wheelbase between 2.8 and 3.0 meters and engine displacements from 2.3 to 3.0 liters. Examples of C-segment cars include the Audi A6, BMW 5 Series, and Mercedes-Benz E-Class. D-segment: D-segment luxury passenger cars are typically characterized by their imposing appearance, extremely spacious interiors, and powerful engines. These vehicles generally have a wheelbase exceeding 2.8 meters and engine displacements of 3.0 liters or more. D-segment models include the Mercedes-Benz S-Class, BMW 7 Series, Audi A8, as well as brands like Rolls-Royce and Bentley.