12-18-2012, 11:22 AM
|
#1 (permalink)
|
|
...beats walking...
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,525 Times in 1,126 Posts
|
How "aero" is this 2014 Cadillac ELR?
...what are the Cd guesses?
|
|
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
12-18-2012, 11:39 AM
|
#2 (permalink)
|
|
Master EcoModder
Join Date: Feb 2012
Location: Ontario, Canada
Posts: 596
Thanks: 133
Thanked 89 Times in 66 Posts
|
I have never even heard of the ELR until right now, looks cool though.
A shot from the hip says 0.27. That roofline looks great, and Cadillac seems to have a way of keeping Cd down even with the giant grills and mirrors.
__________________
|
|
|
|
|
12-18-2012, 12:38 PM
|
#3 (permalink)
|
|
Aero Deshi
Join Date: Jan 2010
Location: Vero Beach, FL
Posts: 1,065
Thanks: 430
Thanked 669 Times in 358 Posts
|
Here's the overlay.
And here's the same pic biggerer.
Pretty dern close, don't know of any Detroit iron shaped quite this well off the back. |
|
|
|
|
The Following User Says Thank You to ChazInMT For This Useful Post:
|
|
|
12-18-2012, 12:50 PM
|
#4 (permalink)
|
|
Batman Junior
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,527
Thanks: 4,078
Thanked 6,976 Times in 3,612 Posts
|
Keep in mind that while shape optimization is the "obvious" path to achieving low drag, the other important part is detail optimization. Two identically shaped vehicles can have drastically different Cd's based on differences in things like: cooling system capacities, wheels/tires, underbody design, trailing edge treatments, side mirror design, wiper location, etc.
All of which makes it hard to predict Cd based on a roof line/profile shot.
That said.... realistically, this will probably be very close to the Volt. Because: with a range-extended EV, efficiency will be an important design goal, and it'll have similar drivetrain/cooling requirements as the Volt.)
|
|
|
|
|
The Following User Says Thank You to MetroMPG For This Useful Post:
|
|
|
12-18-2012, 02:03 PM
|
#5 (permalink)
|
|
EcoModding Lurcher
Join Date: Dec 2010
Location: Los Angeles
Posts: 333
Thanks: 148
Thanked 109 Times in 80 Posts
|
Quote:
Originally Posted by ChazInMT
Here's the overlay.
And here's the same pic biggerer.
Pretty dern close, don't know of any Detroit iron shaped quite this well off the back. |
Well this pic is a Volt in the 2 door skin. The Volt published cd is 0.28. The ELR has funny rear view mirror cameras, and I think it has a different slope to the hatch.
Volt- 
ELR- 
A few pix of the ELR
-mort
|
|
|
|
|
12-18-2012, 02:24 PM
|
#6 (permalink)
|
|
Aero Deshi
Join Date: Jan 2010
Location: Vero Beach, FL
Posts: 1,065
Thanks: 430
Thanked 669 Times in 358 Posts
|
Well Mort, Either your wrong or Autoblog is wrong. You decide. |
|
|
|
|
12-18-2012, 02:27 PM
|
#7 (permalink)
|
|
Master EcoModder
Join Date: May 2012
Location: Tampa, FL
Posts: 1,745
Thanks: 206
Thanked 420 Times in 302 Posts
|
Looks like cab-forward. Thought manufacturers abandoned that. Glad they changed their minds. '98-'04 concorde had a cd of .288. And that was before gas was expensive and aero was more important.
__________________
|
|
|
|
|
12-18-2012, 04:09 PM
|
#8 (permalink)
|
|
(:
Join Date: Jan 2008
Location: up north
Posts: 12,762
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
|
Whatever the Cd is, it looks nice.  |
|
|
|
|
12-18-2012, 04:24 PM
|
#9 (permalink)
|
|
Master EcoModder
Join Date: Sep 2009
Posts: 5,927
Thanks: 877
Thanked 2,024 Times in 1,304 Posts
|
Looks great, wonder how much they could improve the wheels?
regards
Mech
|
|
|
|
|
12-19-2012, 05:43 PM
|
#10 (permalink)
|
|
EcoModding Smurfer
Join Date: Aug 2012
Location: LaX
Posts: 293
Thanks: 52
Thanked 35 Times in 29 Posts
|
Looks similar to the Pontiac G6 coupes...
__________________
|
|
|
|
|
