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the claim

Large trucks have a higher aerodynamic drag coefficient than typical passenger cars.

the verdict
INSUFFICIENT LEANING
Recorded sources
5 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that large trucks have a higher aerodynamic drag coefficient than typical passenger cars?

Unclear. Several sources indicate large trucks have high drag coefficients (a typical truck Cd of about 0.7, and truck bluff bodies inducing drag), while one reference gives passenger cars a Cd of roughly 0.25-0.3, but no retrieved item directly compares the two classes' coefficients.

Verdict: PARTIAL LEAN · 5 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 5
Automobile drag coefficient - Wikipedia
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Automobile drag coefficient - Wikipedia. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Automobile_drag_coefficient

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More for · 4
Aerodynamic Drag Reduction in Commercial Vehicle Using CFD-Based Design Optimisation -
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Aerodynamic Drag Reduction in Commercial Vehicle Using CFD-Based Design Optimisation - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.12688/f1000research.163917.1

Aerodynamic Drag Implications of Exterior Truck Mirrors
1992
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Aerodynamic Drag Implications of Exterior Truck Mirrors. (1992). doi.org. https://doi.org/10.4271/920204

CFD Investigation on the Aerodynamic Characteristics of a Heavy Vehicle Travelling under Crosswind Conditions
2025
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CFD Investigation on the Aerodynamic Characteristics of a Heavy Vehicle Travelling under Crosswind Conditions. (2025). doi.org. https://doi.org/10.37934/cfdl.17.12.1730

Windtunnel modelling of vehicle aerodynamics : with emphasis on turbulent wind effects on commercial vehicle drag
2011
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Windtunnel modelling of vehicle aerodynamics : with emphasis on turbulent wind effects on commercial vehicle drag. (2011). doi.org. https://doi.org/10.25439/rmt.27350775

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