06-27-2017, 02:09 PM | #1 |
Administrator
42657
Rep 21,303
Posts |
G01 X3 Highlights: Inter-models and Versus Predecessor
In case you've missed it earlier, here are some of the highlights of the G01 X3 - both inter-model differences and compared to the outgoing F25 X3.
__________________
Check on the Latest BMW News
Become a fan of Bimmerpost Facebook Follow us on Bimmerpost Twitter Subscribe to Bimmerpost Youtube Channel |
06-27-2017, 03:39 PM | #2 |
Colonel
5003
Rep 2,627
Posts |
Thank you for sharing this, Jason - very helpful.
Just one point of clarification regarding the Coefficient of Drag ('Cx') shown here. While/whilst it is indeed reported to be 0.29 in the base models, in the M40i it is actually 0.33, and since the same blue paint color is shown in the top and bottom X3s, and the top one shows the M40i emblem, it seems natural to make the connection that this is what the M40i has (I even did initially). Although this seems like quibbling, it actually does make a distinct difference in the performance curves of the M40i at high speed (not that many of us will be able to have that opportunity to experience such). I ran the Simulation with a Cd of 0.29 instead of the actual 0.33, and for sake of brevity I won't attach the graph unless anyone wishes to see it. As expected the 0-60 mph time doesn't change as flow dynamics aren't as prominent at this lower speed profile, but by around 110 mph the curves begin diverging, and instead of a Top speed at 88 sec of 157.9 mph and total distance of travel of 17,504 feet, those values become 164.2 mph at 17,990 feet. It would have been nice to have that Cx (Cd) in our M40i, though! |
06-27-2017, 03:42 PM | #3 |
In The Rain
8599
Rep 6,471
Posts
Drives: '24 GT4RS, '24 Macan GTS
Join Date: Mar 2015
Location: SoCal
|
I'm really liking the new X3...
__________________
'24 Porsche Cayman GT4RS Arctic Grey "Alice"
'24 Porsche Macan GTS Dolomite Silver "Gina" |
Appreciate
0
|
06-27-2017, 03:58 PM | #4 | |
Banned
512
Rep 1,239
Posts |
Quote:
But yes .33 drag is not good compared to an amazing .29 |
|
Appreciate
1
FSociety3856.00 |
06-27-2017, 04:20 PM | #6 | |
Banned
176
Rep 342
Posts |
Quote:
|
|
Appreciate
0
|
06-27-2017, 05:03 PM | #7 |
First Lieutenant
861
Rep 349
Posts |
Yes, the higher performance model will often have a higher drag coefficient, as the fenders are flared, there are scoops and intakes directing air different places, it has wider tires than the base model, etc. Your M3, for example, has a higher drag coefficient than a 320 (0.34 vs. 0.26). In fact, at 0.34 your M3 has a higher drag coefficient than the X3 M40i. So the X3 M40 is pretty low, it just happens that the X3 30i is extremely low.
|
06-27-2017, 05:32 PM | #8 |
Gravity Sucks.
177
Rep 213
Posts |
I am not a 100% sure, but this variation could be because the M-Performance model might not have the Active Kidney Grills, and also if you see the front bumper of the M40i, it has larger air intake opening for additional cooling, that will definitely add a bit more drag.
|
Appreciate
0
|
06-27-2017, 05:35 PM | #9 | |
Gravity Sucks.
177
Rep 213
Posts |
Quote:
Yea what he said...... |
|
Appreciate
0
|
06-27-2017, 06:18 PM | #10 |
I'm on that Orange Crush
37
Rep 195
Posts |
I just don't understand the front-end, especially the kidney grille-headlight junction. I thought style continuity was desired and the predecessor actually shows the new direction of having the kidney grill meet the headlamp on the lateral sides.
Why go back to a separation and have a design that is not fluid throughout the brand???
__________________
“Speed has never killed anyone, suddenly becoming stationary... that’s what gets you.” Jeremy Clarkson |
Appreciate
0
|
06-27-2017, 07:15 PM | #13 |
Retired BMW Genius
2931
Rep 3,404
Posts |
M Sport wheels look good. What the heck is light carpet?
|
Appreciate
0
|
06-27-2017, 07:16 PM | #14 | |
Colonel
5003
Rep 2,627
Posts |
Quote:
What does seem to be one area other Mnfrs are addressing, however, is 'active ride height adjustment' by air suspension whereby a vehicle can be lowered at speed to reduce underbody drag, which if I recall correctly, accounts for up to 20% of a vehicle's drag. That BMW has not developed this technology for their line-up suggests to me that it may be fraught with repair/stabilization/... issues, or conflicts with their current xDr systems. I am attaching what the speed differences are for the M40i in the Sim in a small sample showing usual highway speeds. This is nowhere close to what Automotive Engineers have at their disposal and I do not wish to imply such, but it at least illustrates how a lower Cd may benefit fuel efficiency. A 2/10 mph difference early on is shown, with every other variable being identical in the calculations, and this difference increases with speed, so it would suggest this lower Cd should allow for improved fuel consumption. It would seem BMW and all other vehicle Mnfrs (including firms producing trucks) are looking at ways to maximize fuel economy without sacrificing performance, so an interesting future awaits, especially as hybrid and E systems continue their maturation. |
|
Appreciate
0
|
06-27-2017, 09:18 PM | #15 |
Brigadier General
1947
Rep 3,250
Posts
Drives: 2018 BMW 440i GC
Join Date: Sep 2007
Location: Eastern MA
|
Bmw grills getting bigger and bigger, looks stupid
|
Appreciate
1
BimmerGuyFL78662.50 |
06-27-2017, 10:13 PM | #16 |
Lieutenant
86
Rep 510
Posts |
Thanks for this additional information and photos. Sort of answers one question I did have is that finally a picture of the underfloor storage area. Unfortunately doesn't look big enough to hold a space-saver spare tyre as the bin in the F48 X1 does. Another disappointment.
Tony |
Appreciate
0
|
06-27-2017, 10:16 PM | #17 | |
Private
70
Rep 90
Posts
Drives: 2020 G20 330xi, 2019 X3 x30i
Join Date: Apr 2012
Location: Annapolis
|
///M Sport even makes more of a difference than most think...
Quote:
__________________
Current: '17 MSport 330e, '16 X1 xDrive 28i.
Previous: '16 328d xDrive SW, '14 328xd, '13 MSport AH3, '11 328xi sedan. I've handled lots of ///M's, Euro Deliveries, PC Deliveries, Dual Deliveries, some Individual Orders, an M4 GTS, an M760xi. |
|
Appreciate
0
|
06-28-2017, 04:32 AM | #19 | |
Brigadier General
1755
Rep 4,664
Posts |
Quote:
|
|
Appreciate
0
|
06-28-2017, 05:56 AM | #20 | |
Colonel
5003
Rep 2,627
Posts |
Quote:
I do plan on making a checklist once the BMW website has the G01 up and running with all of the options and when I get a chance to see one in person. Whether they were planning on certain changes regardless, or whether they did review the list from time to time to read our concerns is unclear, but it does seem on initial analysis that a fair number of our 'wishes' were granted. I like to think the latter which, if true, suggests they are interested in listening to their customer base and bodes well for the future. |
|
Appreciate
0
|
06-28-2017, 08:30 AM | #21 |
Banned
869
Rep 6,248
Posts |
Surprised that's there's not any mention of the 48V electrical system, as found in all Gxx models?
Also, is there no CFRP in the G01? I thought the reason for the shorten lifecycle of the F15/F16 was so they could upgrade Spartanburg to support the fact that all Gxx X-models that have(?) an intensive CFRP chassis. |
Appreciate
0
|
06-28-2017, 09:12 AM | #22 |
Captain
184
Rep 765
Posts |
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|