The Volkswagen ID.Buzz’s cooling system deliberately routes waste heat from the electric motor and power electronics through the battery thermal management system during winter operation, but this same routing causes the battery to overheat during sustained high-speed driving in summer, forcing the software to automatically reduce motor output and limit top speed precisely when ambient temperatures are highest—creating a seasonal performance paradox where the van becomes progressively slower as weather warms up, despite the motor having identical mechanical capability year-round.
Car Fact #150 — November 12, 2026
