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That's not actually true, Howard. The primary factor that causes a diffuser not to generate downforce is flow separation. "Undisturbed", "clean airflow" -- a.k.a laminar flow -- will actually produce boundary layer separation sooner, at a lesser angle of attack than will turbulent flow...

Actually, John Bunyan was the author of Pilgrim's Progress -- but I suspect that's not who Will intended.

What is the new transaxle and paddle shifter?

Huh. This time of year in Minnesota, I would have expected it to be wintery.

Flat cranks are not just about maximizing power and torque. There is some gain to be had there from better exhaust tuning, but mostly flat-crank engines have been about better responsiveness. At least that was the case when Ferrari and some other manufactures were making such engines. With...

The Flying Lizard Audi is a 2014 R8 LMS, which is a helluva lot different from an A8. The QRP SLC got beat by a serious race car driven by professionals on a team with significant financial backing, not by some full-sized luxury sedan.

The video didn't say "inherently", but rather "typically" -- and that is correct: flat crank V8s do typically have shorter strokes in order to minimize the effects of imbalance and vibration. One of the things that I'm most curious about with this new Ford engine is just how bad the vibrations...

Engine options? Diesel?

"Did exist" is not the same thing as "does exist". Neither was the Razor a side-by-side Nemesis, but rather a completely different, earlier car.

How can it replace something that doesn't exist?

Well, chassis pics would be more welcome than pics of the increased width Fran that Ken was talking about.

Runout

One thing to keep in mind with touchscreen interfaces is that they can be difficult to use in a vehicle in motion. That is why built-in places to brace a couple of fingers and thumb while trying to manipulate a UI element can provide a better user experience than trying to poke at the right...

It doesn't?

You mean like Mario Kart?

Other than pretty pictures, that doesn't appear to offer anything more than the well-established practice of oil flow tests. If you don't mind getting your car dirty, there's nothing preventing you from already doing such full-scale aero testing.

If you want some good data and design discussion about various inlet and outlet configurations, there's this oldie but goodie. NACA-TR713 is from before the development of the NACA duct, but all you really need to know about NACA ducts is that they don't work their magic unless neither the...

Which is true for most automotive applications of NACA ducts, where even using them the right way around is using them the wrong way -- or misusing them to do a job for which their designers specifically noted they were not well-suited. The Scoop on the NACA Scoop | Flying Magazine

And for 2011+ Jeep Grand Cherokees, the battery is mounted under the front passenger seat.

Under normal conditions, any gas produced during the charging of a SVR (sealed valve regulated) battery, such as an AGM (absorbed glass mat) battery, will not reach sufficient pressure to get by the battery's safety regulator valve. It is only when these batteries are severely overcharged that...