Thanks Bob -- I'm sorry to hear that! Yes 24X the air speed would be a big challenge! I guess that is why the pictures of the Mercedes scale models show them in a fluid tank? :-(
Okay, a few more points: yes that one picture is the only one I've found of the blue model with wheels. The (slightly revised) frontal area of the drawing of the CarBEN concept is 25.814 sq ft. and the area of the rear fascia is 10.166 sq ft. so the taper is ~2.5:1. Also, please note that my drawing is approximately 4" narrower per side on the rear fascia, than the wood model is.
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