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The Degradation Inversion: Why Legacy Engineering Is Beating Tesla at Battery Longevity

A comprehensive study of used electric vehicle packs shows Mercedes-Benz, BMW, and Hyundai leading the industry in long-term battery health—while Tesla slides into the bottom third.

For over a decade, the standard Silicon Valley narrative insisted that legacy carmakers were hopelessly behind on electric powertrain chemistry.

The findings from the extensive study of pre-owned EV packs revealed that Mercedes-Benz, Hyundai, and BMW are delivering the highest retained battery health across thousands of…

The divergence between legacy performance and Tesla’s placement reflects a fundamental clash of engineering philosophies.

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A comprehensive study of used electric vehicle packs shows Mercedes-Benz, BMW, and Hyundai leading the industry in long-term battery health—while Tesla slides into the bottom third.

Read at Downforce & Divots