This BMW Add-on is now modernized to my current coding skills and represents the peak of my creative knowledge. This Add-On is well optimized, using only one physical model with simple texture replacement variations, making the total cube count in game under 350. Thank you to JannisX11 for entity wizard base vehicle code. Each car does fit three passengers and one driver, and the speed is low enough to be controlled on mobile easily.
This addon includes two versions of the F30 generation 3 series, the F30, a 4 door sedan, and the F31, a hatchback wagon variant. Both feature M Sport styling.
(Thank you to sk8torad3 https://mcpedl.com/user/sk8torad3/ for helping me fix steering angles)