The Weight of the MatterThe Alliance for Automotive Innovation, which represents major automakers like General Motors and Toyota, is pushing to replace the gas tax with a single fee based on vehicle weight. While the proposal aims to address declining gas tax revenue used to fund highway repairs, such a measure could disproportionately impact owners of pickup trucks, SUVs, and electric vehicles.That is because trucks and SUVs typically use heavy-duty components to improve capability, often at the cost of added weight. EVs, meanwhile, also tend to be heavier than internal combustion vehicles because of their battery packs. Reuters noted that John Bozzella, head of the group, did not specify how much the proposed fee would be, but some form of change appears increasingly necessary, especially since the federal gas tax has not been updated since 1993, even as the auto industry has changed significantly over the past decade. Funding Roads in an EV EraNotably, EVs have become more widespread in the 2020s with models like the Hyundai Ioniq 5 and the Ford Mustang Mach-E. These zero-tailpipe-emission vehicles are not subject to the 18.4-cent-per-gallon federal gasoline tax because they run purely on electricity, meaning they still use public roads without directly contributing to the fuel-based taxes that fund their maintenance.Hybrids have also become far more popular, to the point that the Toyota RAV4 has gone exclusively hybrid for the 2026 model year. These vehicles consume less fuel than conventional ICE models by using one or more electric motors to assist with propulsion. But at the same time, that trend could further strain the long-term sustainability of U.S. highway funding, which still depends heavily on gas tax revenue.2024-ford-f-150-platinum_06-3574x2693 Paying by the PoundWith that in mind, the Alliance for Automotive Innovation’s proposal could help reduce funding gaps created by the rise of electrified cars. Heavier vehicles generally place more stress on road surfaces than lighter ones, which may support the case for a weight-based fee. Still, it remains to be seen how such a policy might affect ownership of larger vehicles. If approved, the proposal could impact a substantial share of U.S. drivers, especially given that full-size pickups like the Ford F-Series and Chevrolet Silverado remain among the country’s best-selling vehicles.Another proposal is a $250 annual fee for EVs, which critics have called unfair, especially since gasoline-powered vehicles pay about $88 on average. These ideas are gaining attention as the current U.S. surface transportation law is set to expire on September 30, 2026. The federal government also faces growing pressure to find a long-term solution after transferring more than $275 billion from the general fund to help cover road repairs since 2008.
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