Stellantis bets big on Windsor batteries, US tariffs threaten to blow up the supply chain

Stellantis opens a new Windsor battery center, but CEO Trevor Longley warns zero-tariff US-Canada trade might be gone for good.
Stellantis, Windsor battery center

For decades, the auto industry treated the US-Canada border like a convenient toll booth on a toll-free highway. Motors, microchips, and entire vehicles zipped back and forth between Ontario and Michigan in a seamless, borderless tango that made North American car manufacturing look ridiculously effortless. But as political trade drama brews and tariff threats cast a dark shadow over Detroit and Windsor, that golden era of friction-free logistics is officially sputtering out.

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Even as Stellantis cut the ribbon on a brand-new, state-of-the-art battery technology center in Windsor, Ontario, the celebratory champagne tasted a bit like tariff-induced panic. The shiny new facility, designed to test cells, modules, and battery management systems for electric vehicles, hybrids, and range-extenders, serves as the North American twin to Stellantis’s Mirafiori hub in Italy and a key pillar of its aggressive “FaSTLAne 2030” strategy, which promises over 60 new models.

Stellantis, Windsor battery center

While engineers were eager to talk about kilowatt-hours and thermal runaway, reporters had only one burning question: are trade tariffs about to ruin the whole party?

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Trevor Longley, President and CEO of Stellantis Canada, didn’t bother wrapping his answer in diplomatic fluff. When asked by CarBuzz if North American automotive trade could ever return to a glorious zero-tariff paradise, his reality check was blunt: “I’m not sure we’ll get back to zero”.

For a company employing roughly 10,000 Canadians and operating in the Great White North for a full century, border uncertainty is an absolute nightmare. When you don’t know which government will slap a fresh tax on a crate of spark plugs or a battery casing tomorrow, deciding where to build a next-gen crossover becomes a high-stakes game of geopolitical roulette.

Stellantis, Windsor battery center

As the USMCA trade agreement faces upcoming revisions, Stellantis is begging for stable rules rather than political curveballs. The Windsor battery lab proves Stellantis is all-in on North American electrification, but unless cross-border commerce stays rational, building a profitable EV lineup might prove harder than solving battery physics.

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