[aerohead]

Originally Posted by Vekke

Renault have released their second fuel efficiency truck concept.

They have dropped the fuel consumption from 32,7 liters to 25,4l/100km or 9.2 MPG us with 33 tonn total weigth. Thats 22% improvement. Thats also 0,76l/tonne fuel consumption. Max weigth would have been 40 tonn and that would have made l/tonn fuel consumption better.

Renault Test Truck Cuts Fuel Consumption 22% · Environmental Leader · Environmental Management & Sustainable Development News



Pics: https://www.google.fi/search?q=renau...w=1360&bih=631

PS: I would not call this aerodynamic either as there is still so much more room for improvement or even good fuel consumption figures as there are things also mechanically that could be done.

Renault's 1987 V.I.R.A.G.E. achieved Cd 0.29 with the extended boat tail.

Also in 1987 they had their own 'BIONIC/Boxfish' Vesta II,Cd 0.187 and 100+ mpg.

The 1985 Renault ORPHEE concept achieved Cd 0.129 and they predicted that they'd be at Cd 0.10 within a decade.
I feel like they are quite capable of low drag.