I've seen trucks which can raise one of their rear axles when the load is small. This improves rolling resistance. I guess that wouldn't be just a small, easy mod to any truck, would it?
Also, the "wedge" on top of the cabin is partially empty inside. Can it be removed when not towing a trailer? It would significantly reduce frontal area. I've seen so many trucks without tailers on the highway and always thought whether the "wedge" could be somehow hinged to hang in the back, like a kammback, instead of plowing through the wind.
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e·co·mod·ding: the art of turning vehicles into what they should be
What matters is where you're going, not how fast.
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[Old] Piwoslaw's Peugeot 307sw modding thread
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