Multi-Speed Electric Transmission Market Size, Share, and Industry Analysis by Vehicle Type (Hatchback/Sedan, SUVs, Light Commercial Vehicles, and Heavy Commercial Vehicles), By Number of Gears (Two-Speed Transmission, Three-Speed Transmission, and Others), By Propulsion (Battery Electric Vehicles, Plug-in Hybrid Electric Vehicles, and Others), By Drivetrain (Front-Wheel Drive, Rear-Wheel Drive, and All-Wheel Drive), By Sales Channel (OEM and Aftermarket), and Regional Forecast, 2026-2034