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SAE International Podcast: Why Vehicle Weight Matters More Than You Think

9/26/2025

The latest podcast from SAE International examines why the weight of a car is the best single measure of its environmental impact per unit of distance driven.

Authors Nick Molden, founder and CEO of Emissions Analytics, and Felix Leach, associate professor of Engineering Science at the University of Oxford, discuss their idea for a weight-based tax system that future-proofs tax revenue while nudging consumers toward lighter, more sustainable vehicles.

Access the most recent episode of SAE Tomorrow Today on SAE’s podcast page.


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