What types of environmental testing are performed on vehicles?

Environmental testing validates vehicle operation under extreme conditions: Cold testing (down to -40C) for cold starts, battery performance, and HVAC; Hot testing (up to +50C, 95% humidity) for cooling and interior comfort; Altitude testing (up to 4000m) for engine performance and braking; Salt spray for corrosion resistance; UV exposure for material degradation; Dust exposure for sealing and filtration; and Water fording/spray for electrical protection. Testing occurs in climate chambers and at specialty locations like Death Valley or northern Sweden.