* All the leading edges of the topper will be triggering flow separation.
* I've been driving a '93 Toyota 2WD Pickup with the 'same' topper, however, top and sides are a 'perfect match' to the cab.
* 31.6-mpg at a steady 100-km/h ( 62.1 mph ) with the 4-cyl, 5-speed, and 215mm section Hankook all season, 14-inch.
* VMAN455's 1991 year model of the same 4WD variant is @ 22.2 mpg at around 56-mph.
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Aside from the 'roof', have yo seen the 'Extreme' aero kit for the Sonoma / S-10 ? Gale Banks Racing used these aero tricks to help get the 1st-gen S-10/S-15 down to a Corvette's drag coefficient ( from Cd0.475, to Cd 0.315 ), for a 211-mph land speed record. That would have been good for a 16.8% mpg improvement at the old double-nickel speed limit.
