Proterra SPAC Presentation Deck

PROTERRA OVERVIEW PROTERRA POWERED PROTERRA Proterra Transit: North America's #1 Electric Transit Bus OEM Clear Leadership in Flagship Validation Market with 50%+ Market Share ¹ PROTERA ZXS OVER TECHNOLOGY BATER ELECTRIC PROTERRA TRANSIT TERO EMISSIONS ALL THE POWER PROTERRA ENERGY LETO CONTEN January 2021 ZX5 5th GENERATION CLEAN & QUIET Pei LONGEST RANGE PROTERRA Purpose-Built Electric Transit Bus Technology Platform Proven Validation Superior Performance Significant Savings 1. 2012-2019 Proterra electric transit bus market share in North America; refer to Index on page 52 for additional information ● ● ● ● ● ● PROTERRA 50% Market Share 16 Million Real-World Service Miles 10+ Year Vehicle Service Track Record Successfully Completed 8 Altoona Tests Long Range High Fuel Efficiency Fastest Acceleration Greatest Horsepower Low Operating Costs High Uptime Zero Tailpipe Emissions 19

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