Proterra SPAC Presentation Deck

PROTERRA TECHNOLOGY Best-in-Class Integrated Drivetrains: Proven, Advanced Performance Purpose-Built to Optimize Torque and Efficiency Industry-Leading Drivetrain Capabilities Longest range with 5x the efficiency and 2x the acceleration of a diesel bus Designed to outperform direct-drive systems in all conditions Dedicated team performs system integration, software & controls, testing & validation Next generation drivetrain unlocks new commercial vehicles April 8, 2021 Portfolio Serves Multiple Commercial Vehicle Applications Technology Proterra DuoPower eAxle Next Generation (In Development) Proterra ProDrive Confidential Wheel Transmission Torque Dual 2-Speed 4-Speed 2-Speed 22,000 Nm 25,400 Nm 19,700 Nm PROTERRA Proterra is Well-Positioned with a Strong Portfolio of Multi-Speed Drivetrain Solutions Continuous Power 370 kW 200 kW 180 kW 48

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