Peugeot RCZ 1.6 THP 200 (2010)
https://www.ultimatespecs.com/car-co...ugeot-RCZ.html
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Aerodynamic drag coefficient - Cx
0.322
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Peugeot RCZ 156 THP (2009)
https://www.carinf.com/en/5d30418225.html
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.............and the drag coefficient is 0.33.
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First Test: 2012 Mini Coupe John Cooper Works
https://www.motortrend.com/reviews/2...ks-first-test/
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An integrated roof spoiler set at the latter half of its contrasting "helmet" directs air down to an active rear spoiler that rises at 50 mph. Both provide 88 pounds of additional downforce while travelling at the Coupe's electronically limited 149 mph top speed. Having all that push to the ground has does have a negative effect, mostly in the form of a slightly higher drag coefficient that's up to 0.35 versus a slipperier 0.33 of the base Cooper hardtop. If you're wondering, no Coupe can be had with a color-matched helmet.
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JCW The Differences: F56 JCW vs. Cooper S
https://www.northamericanmotoring.co...-cooper-s.html
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*Aerodynamic Drag: Cooper S has a Cd of 0.31, frontal area of 2.09 square meters, for an effective total drag of 0.65 m^2. The JCW has a Cd or 0.34, same 2.09 m^2 frontal area, and a total drag of 0.71 m^2.
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Not what I quite expected.
The boxy version of the Mini bests the Peugeot RCZ and the swoopy looking JWC Coupe Mini comes in last.
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Originally Posted by freebeard
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Yep - busted, but it does seem like at times that squeezing air may take more energy than it returns in favor of attached flow. I suppose that's why air-curtains for the front wheels are NOT a good DIY project. Roof slots don't seem as complex and may be more forgiving, at least in the case of my own roof wing/slotted cab extension.