For those fishing for concrete "facts" I can say with certainty that the SRT wing decreases fuel mileage by roughly 1-2 mpg (I always do the calculations on fuel mileage, every fill-up... the nerd in me).

Pre-SRT wing, I got a combined 27mpg average per tank. This held true for thousands of miles and several tanks. After it was installed, I never got more than 25 combined. My driving is 80% highway, and I set the cruise at 80 for the full 26 mile trip to work each morning. Traffic and distance are unchanged each morning, traffic being no issue once I hit highway. Modifications to the engine were not changed until long after the SRT wing was installed. Therefore, the wing was solely responsible for the change.

This would imply that the wing is having some effect on the car. I would say more drag, but the analogy Dave presented would imply not, seeing as the angle of the SRT wing is noticeably less. If a short wing at a steeper angle creates more downforce, why does it also yield a lower coefficient of drag? Aesthetics be damned, why did Chrysler's group design a part that would handicap the SRT-6?

As for the intangible, anectodal evidence, allow me to clarify: at 130mph with the Limited wing, the car wasn't "loose" by any means, but there was a definite "wiggle" especially in windy conditions. Said wiggle was absent after wing was installed. Stability at speed increased even more once I finally bit the bullet and installed the SRT front fascia, which is lower to the ground. Trips to 150+ were smooth and reassuring. The effect was certainly tanigble, not psychological.

How much effect? No way of knowing. The difference between a B-cup and a C-cup is only an inch or two of boob, which is marginal in the grand scheme of things. But the level of satisfaction is apparently in the eye of the beholder.

Me, I'll take the big wing and the big *****, regardless of what wind-tunnels and chiropractors say.

I think we've more than beaten this horse to death... The "Flipper Crowd" can enjoy their mileage advantage, "ironing board crowd" can enjoy the aesthetic improvement. In the end, we're all driving the same damn car and very few of us have the brass to push the car to the extremes where the wing type would even matter. Right?

John, come back to the discussion any time you'd like, you big sensitive teddy bear. I still owe you a beer from your absence at the Fall 2011 Dragon...

Cheers,