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Old 06-02-2013, 04:52 AM   #1 (permalink)
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Car with "active aerodynamics"

Hi all,
I'm struggling to find a car model of which I only remeber one particular aspect: the car has an active device on the diffuser...

It was probably a med-low price car, a hatchback if I'm not mistaken, which was launched 4 or 5 years ago more or less. I indicated on a Veloster this kind of device but I'm sure it was not the Veloster... I thought it was a Hyundai or a Citroen, but I have tried to search it and I can't find it anymore... so maybe it was another brand.

//s21.postimg.org/y7f6064mv/Active_Aero.jpg
(add "http:" before the above link in order to visualize the image)

The green "device" lowered while reaching a threshold speed as indicated with the green arrow...

Does anyone know which car was it?
Thanks in advance

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Old 06-02-2013, 11:52 AM   #2 (permalink)
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From 2011.

STREAMLINED ALL-NEW FORD FOCUS SIGNIFICANTLY REDUCES AERODYNAMIC DRAG, ADDING FUEL EFFICIENCY
STREAMLINED ALL-NEW FORD FOCUS SIGNIFICANTLY REDUCES AERODYNAMIC DRAG, ADDING FUEL EFFICIENCY | Ford Motor Company Newsroom
Quote:
All-new Ford Focus adds innovative active grille shutters, improving CO2 emissions by 2 percent and helping to improve thermal efficiency
More companies than Ford doing this by now I suspect.

EDIT-1

Active Shutter Grille Vents: How They Help Improve MPG
Active Shutter Grille Vents: How They Help Improve MPG
Oct 8, 2012
Quote:
......active grill shutters are now being used by GM, Ford, and Chrysler--among others
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Old 06-02-2013, 12:04 PM   #3 (permalink)
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I knew about active grille shutters, but the car which I'm looking for has another "active" solution...and I don't know exactly if it's aimed at enhancing downforce of reducing drag (or both)... by the way it was a low-med price car, so nothing extraordinary in terms of performances

I can't post images due to insufficient number of posts, but if you add "http:" to this //s21.postimg.org/y7f6064mv/Active_Aero.jpg
you can see what I mean.

Thanks however for the reply; I'll keep searching.
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Old 06-02-2013, 12:07 PM   #4 (permalink)
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I think the Chrysler crossfire had an active spoiler that deployed at higher speeds
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Old 06-02-2013, 12:12 PM   #5 (permalink)
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Quote:
Originally Posted by jaylhouse View Post
I think the Chrysler crossfire had an active spoiler that deployed at higher speeds
I'm not sure what he means by "diffuser".

If he means rear spoiler, then Porsche has done that with the 911, Boxster and Carrera GT for decades.

For lower end cars nothing comes to mind right away.
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Old 06-02-2013, 01:02 PM   #6 (permalink)
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Thanks for quick replies. What I mean is not a spoiler as in Porsche 911, Mercedes SLS or also Chrysler Crossfire...

If you open the image i posted above by adding "http:" you can see what I mean. I would call it an "active diffuser", but I don't know if it's correct: a device lowers above a threshold speed as shown in the image. I'm sure it's not a high-end car...maybe a C-Segment car and not a really sporty one... but I can't remember that model
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Old 06-02-2013, 02:43 PM   #7 (permalink)
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Quote:
Originally Posted by LogicPro View Post
Thanks for quick replies. What I mean is not a spoiler as in Porsche 911, Mercedes SLS or also Chrysler Crossfire...
I've tried viewing the image using your method and came up with nothing. I have no idea what I'm doing wrong.

Several expensive cars like the Bugatti Veyron lower the whole car, but that is not what you are referring to - just another way to get things done.

Good luck, hope your memory giggles.
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Old 06-02-2013, 03:23 PM   #8 (permalink)
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Old 06-02-2013, 07:54 PM   #9 (permalink)
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Mistu 3000gt had a active chin spoiler in the mid to late 90's if I recall correctly.
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Old 06-02-2013, 09:08 PM   #10 (permalink)
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Quote:
Airflow beneath the car is managed by tailored panels on the underbody, with a lower front deflector and speed lip, engine undershield and front-wheel deflectors.

anyone know what a 'speed lip' is? i dont, but im pretty sure i need one

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