Most EV Coverage Gets Efficiency Backwards, Here's the Correction

A Chevy Bolt barely edges a Model 3 on the highway. That sentence sounds wrong to most Canadian EV buyers, and the fact that it sounds wrong is the entire problem. The engineering community has known it's true for years. The marketing community has spent five years quietly avoiding it. And federal incentives are now actively pushing buyers toward smaller vehicles using a framing that the physics doesn't support.

This is the correction. The size-equals-efficient shortcut is broken at highway speed. Aerodynamic drag dominates the energy bill. Canadian buyers should be asking for figures at stated speeds and conditions before they sign anything. EVAP eligibility is a financial signal, not an efficiency one.

Canadian EV shoppers who understand those four points before walking into a dealership are already ahead of the conversation.

The Assumption That Quietly Shaped Canadian EV Buying

Most shoppers walk into a dealership carrying a mental model from the gasoline era. Small car burns less fuel. Big car burns more. Engine displacement and curb weight drive consumption. That model is broadly true for internal combustion, where mass and engine size both compound into the fuel-economy figure on the window sticker.

It is mostly wrong for electric vehicles at highway speed. And the people writing about EVs in Canadian mainstream media have not done the work of saying so out loud.

Here is the physics in two sentences. Charging a PEV is not 100% efficient, a small amount of energy is lost through energy conversion and heat. MPGe values assume Level 2, alternating current (AC) charging and account for losses from the charging cable and the on-board vehicle charger, which moves the measurement from the vehicle to the outlet in the wall to better represent how much users would pay to refuel their car, a methodology the EPA documents in its fuel economy and EV range testing notes. So even before you drive, the energy stack already has losses baked in that the size of the car cannot fix. After that, on the road, the dominant variable at highway speeds is aerodynamic drag, a function of frontal area and drag coefficient, not curb weight.

This is why a Chevy Bolt and a much larger Hyundai Ioniq 5 land in the same neighbourhood on a long highway run, a pattern visible in Recurrent's fleet-data efficiency rankings, which document how aerodynamic shape consistently outperforms small footprint at speed. The Bolt is lighter, but it's also taller relative to its length and has a less optimized shape. The Ioniq 5 carries more mass but pushes through the air more cleanly. At 100 km/h on the Trans-Canada, those two effects roughly cancel. That isn't a defect of the Bolt. It's a feature of how electrons behave once a vehicle is up to cruising speed.

Recurrent's broader market analysis is the part that should sting. EV efficiency has actually declined since its peak in 2018, due to market preferences for larger, heavier, and less aerodynamic vehicles such as SUVs, trucks, and boxy crossovers. The fleet got worse, not better. And the marketing kept pretending it was getting better.

The Department of Energy's framing is the other piece often quoted out of context. An EV's battery transfers energy to an electric motor, the motor turns a drive train, which then turns the wheels, and up to 80 percent of the energy in the battery is transferred directly to power the car, a figure documented in the DOE's Energy 101 explainer on electric vehicles. Real and incomplete. It tells you nothing about whether the body around that powertrain is shaped to use the electrons well.

A small boxy hatchback with a higher drag coefficient will spend more energy at 110 km/h than a longer, lower sedan with a cleaner shape, even when the sedan weighs more. The marketing language flattens that. The reader pays for the flattening.

The way Tesla solves this, and most legacy compacts don't, is by treating the body as an aero exercise first and an interior package second. That's the choice. It isn't magic. And it isn't a choice that mainstream Canadian EV coverage has been willing to spell out, because spelling it out means telling readers that the cute small EV they were leaning toward might not be the efficient pick they assumed.

What This Means at the Dealership

Push back on a framing that keeps showing up in EV coverage, the idea that any criticism of small-vehicle efficiency claims is somehow an attack on the EV transition itself. It isn't. It's the opposite. The EV transition gets stronger when buyers walk away from purchase decisions feeling like the car they bought matches the way they actually drive. It gets weaker when buyers feel they were sold one story and shipped another.

The engineering community already knows all of this. The technical answer is well understood. The disconnect lives between engineering reality and the consumer-facing language used to sell the vehicles, the gap that the press-release problem in EV coverage walks through with specific examples. That gap is where Canadian buyers lose money, and it's the gap mainstream auto coverage has refused to close.

The Canadian market sits in a particular spot. Federal incentives are pushing demand toward affordability. Provincial top-ups in BC, Alberta, Quebec, and elsewhere stack on top of that. The buyer is being financially nudged toward the cheaper end of the catalogue, which often means the smaller end of the catalogue. If the efficiency story attached to those cars is misleading, the nudge becomes a bad decision rather than a good one.

If the only thing this changes is that one Canadian buyer asks "what's the kWh per 100 km at 110 km/h?" before signing the lease, and gets a real answer from the salesperson, the whole exercise was worth it.

The Standard, Going Forward

Every efficiency reference should travel with a speed and a condition. No more bare mi/kWh or kWh/100km numbers floating in a paragraph with no context. If a publication or a manufacturer says a vehicle returned 4.0 mi/kWh, the next clause should specify the speed, temperature, and surface. Bare numbers without conditions are marketing, not data.

Press releases and competing outlets that conflate "small" with "green" without supporting data should get flagged, not as a gotcha, as service journalism. Readers deserve to know when a claim is being made on vibes rather than measurements.

Three things to watch over the next eighteen months. First, whether Canadian mainstream automotive coverage starts citing speed and conditions alongside efficiency figures, or whether it stays at the brochure-summary level. Second, whether EVAP eligibility shifts toward vehicles with better demonstrated highway efficiency or stays anchored to price ceilings alone. Third, whether the aerodynamic-first design philosophy that's already shaped the global market starts visibly influencing North American product launches.

I'd bet on all three moving in the right direction, slowly, with the policy piece being the slowest. I'd change my mind if the next federal-program update treats the eligible-vehicle list as a proxy for green choice rather than as a price-anchored affordability tool. That would be a step backwards.

The next time you're at a dealership, the salesperson's pitch should sound a little less convincing and your own questions should sound a lot sharper. If they don't, the homework wasn't done.