Fiat Chrysler Automobiles has announced that it has spent $2.5 million to improve its Chrysler Technology Center (CTC) at the FCA HQ in Auburn Hills, Mich. The new CTC is designed to test the capability of 4×4 vehicles in a wider range of temperature extremes from -40 with snow blowing at 100mph to 130-degrees simulating a warm Texas summer day.

The drive cell housing of the new dyno can be chilled to 40 below zero to simulate blizzard conditions to determine how the vehicles will perform when dense snow clogs air intakes. The drive cell has a dyno system that and handle up to 350hp in the front and a dyno that can handle up to 650hp in the rear.
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https://www.slashgear.com/fca-drops-2-5-million-on-new-4×4-dyno-for-snow-and-ice-testing-07395956/