8 speed auto?
09-11-2010, 01:45 PM
#1
Wondering for guys who have driven this for loner than 5 minutes which is all I really did with a testdrive how this works out? To me it seemed to hift an awful lot and dont remember but atleast 3 shifts to 60 which the 6 speed auto has 2 shifts in my car--and for cruising--I guess it sems more logical to have maybe a 7 speed with a 7th gear for cruising even more fuel efficient but not so many gears from 1-4 spaced so close.. any thoughts compared to the 6speed zf auto
09-11-2010, 02:15 PM
#3
just doing some reading on this and chyrsler signed with zf to produce these trannys themselvs for their cars--seems like there is getting a closer and closer gap in domestic and euro cars-way less reason to buy the bmw now adays except for the snob factor and design factor which for me were big in the e60 but for the f10 if you dont like the design american will look better
09-11-2010, 02:20 PM
#4
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okay maybe i wasn't clear in the first post but in elementary school they taught us something called punctuation... Here's a recap in case you missed out.
09-11-2010, 03:00 PM
#5
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My Ride: 2008 Porsche 911 Carrera S Convertible. Midnight Blue, 6 Speed.Retired - 2007 997 Carrera S, Midnight Blue, Grey leather, premium audioRetired - 2007 550i, Monaco Blue over Beige, Navigation, Logic 7, Cold Weather Pack, Comfort Access, Sport Package
Model Year: 2008
09-12-2010, 01:10 AM
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My Ride: Awaiting a Saphire Black 520d SE, Black High-Gloss Trim, Black Fusion Upholstery, Hi-Fi Stereo, DAB Radio, USB/Ipod Adaptor. ETA Nov 21st 2007
It works pretty well. For smooth cruising, changes are almost hardly noticeable, it's incredibly smooth. With the sports transmission (which I have) it changes fast and almost seems to short shift, i certainly can't count 8 changes from start to top. Wonderful gearbox actually, one of the real highlights.
09-12-2010, 07:09 AM
#9
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My Ride: 2011 BMW 550i; Dark Graphite Metalliic/Oyster, 4.4 TT V8, 8-sp AT, Sports Package, Dynamic Handling, Premium Package 2, Cold Weather Package, HUD
Yeah, I have no complaints about my 8-sp AT, either......shifts are very fast and smooth. I think the 8-sp also helps with the fuel economy, too.
09-12-2010, 07:45 AM
#10
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My Ride: 2008 Porsche 911 Carrera S Convertible. Midnight Blue, 6 Speed.Retired - 2007 997 Carrera S, Midnight Blue, Grey leather, premium audioRetired - 2007 550i, Monaco Blue over Beige, Navigation, Logic 7, Cold Weather Pack, Comfort Access, Sport Package
Model Year: 2008
ZF make some wonderful automatic transmissions, they are used by a number of manufacturers including BMW. The jury is still out on whether the 8 speed helps or hinders performance, but the fuel economy benefits are clear and with the CAFE standards being what they are (and more pertinently what they will be) it's easy to see what's driving BMW and others to switch to 8 speed transmissions.