The Motor Mouth opinion column at driving.ca argues Prime Minister Mark Carney can convert Canada's auto tariffs from a defensive response into an offensive trade tool — a posture shift that would touch every assembly plant in Ontario and the supplier network feeding the Detroit Three's Canadian operations.

That is the framing of the latest Motor Mouth installment, published under the headline "How Carney can use auto tariffs to go on the attack."

driving.ca is a Postmedia-owned Canadian automotive outlet. The full column text sits behind a Google News redirect; this brief works from the headline, the outlet's editorial positioning, and the public record of the Canada-U.S. auto trade file.

What does the column propose?

The headline sets a strategic frame rather than a policy menu. "Go on the attack" reads as a recommendation that Ottawa stop calibrating tariffs in proportion to U.S. duties and instead deploy them as leverage on a specific demand — market access, investment commitments, or a sector carve-out for finished vehicles.

The word choice matters. Motor Mouth is an opinion column, not a government statement. The framing is one writer's read on the policy options Carney has on the table. It is a claim to weigh against the next round of official countermeasures, not a confirmed direction.

Why the auto file is the obvious lever

Canadian auto assembly is the country's largest single bilateral trade exposure with the United States. Finished vehicles, powertrains and components cross the border daily under the integrated North American supply chain that successive trade frameworks — from the 1965 Auto Pact through NAFTA to the current USMCA — codified.

A "go on the attack" framing implies the column's author sees current Canadian tariff policy as reactive to U.S. moves under Section 232. The implication is that Ottawa has tools it has not used, and that the auto file, because of its size and integration, is the sharpest one.

What to watch

The next test of any new tariff strategy will be the outcome of the ongoing Canada-U.S. trade review and the next round of Canadian countermeasures. Watch for:

• A specific demand attached to any new Canadian auto tariff — investment guarantees, local content rules, or a sunset clause
• Whether Ottawa grants relief to OEMs that maintain or grow Canadian production volumes
• U.S. response timing at the next Section 232 review window

The column is one opinion writer's read on the policy menu. The hard test is whether any of it shows up in the next official announcement — and whether the OEMs and Tier 1 suppliers operating the Canadian assembly footprint are consulted before, or after, the policy lands.