What is the difference between A+ class sedans and B class sedans?

[LeRafael]

The differences between A+ class sedans and B class sedans are: 1. Different vehicle types: A+ class sedans are compact sedans; B class sedans are mid-size sedans. 2. Different wheelbases: A+ class sedans generally refer to vehicles with a wheelbase between 2.3 to 2.6m; B class sedans generally refer to vehicles with a wheelbase between 2.6 to 2.8m. 3. Different engine displacements: A+ class sedans refer to vehicles with engine displacements between 1.4 to 2.0L; B class sedans refer to vehicles with engine displacements between 1.6 to 2.5L. Vehicle classification is mainly based on parameters such as wheelbase, displacement, and weight. The further back the letter in the alphabet, the longer the wheelbase, larger the displacement, and greater the weight of the vehicle in that class.