ArticleNpj sustainable mobility and transport2026
Rebound effects of power enhancement in internal combustion and electric vehicles.
Article in Npj sustainable mobility and transport, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
Regulations and public expectations are compelling the road transport sector to innovate for higher vehicle efficiency. However, a persistent gap remains between official figures and real-world energy performance. This discrepancy is often linked to idealized testing environments and behavioral "rebound effects," where improved efficiency leads to increased travel. This study introduces the "power rebound effect," a new premise where increased horsepower impedes the deployment of efficiency gains. Analyzing a database of 531 car models from 15 years of real-world European testing, our findings reveal a significant power rebound effect in petrol and diesel cars, though not in electric ones. Additionally, rising vehicle weight induces a rebound effect across all vehicle types. This research provides a fuller understanding of the factors shaping passenger car fuel intensity, offering crucial insights for future energy policy.
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