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. January 2021 Portfolio Serves Multiple Commercial Vehicle Applications Technology Proterra DuoPower eAxle Next Generation (In Development) Proterra ProDrive Confidential Note: Refer to Disclaimer on pages 2 and 3 regarding forward-looking statements and use of projections Wheel Transmission Torque Dual 2-Speed 4-Speed 2-Speed 22,000 Nm 25,400 Nm 19,700 Nm Proterra is Well-Positioned with a Strong Portfolio of Multi-Speed Drivetrain Solutions PROTERRA Continuous Power 370 kW 200 kW 180 kW 31

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