Quote:
Originally Posted by mcrews
Drove my gf 2011 Lexus RX 350 for several days this week.It has an 8 speed automatic transmission.
I really thing 6-8 speed auto trannies are the secret to improving mpg.  |
The wonderful ZF 8-speed ?
Best auto transmission on the market today.
In its latest guises in BMWs, it'll even coast in neutral when you let go of the throttle.
It's one of the auto trannies that will get many users closer to the NEDC/EPA figures than they'd be with a manual.
Can't even remotely compare that box to a traditional US slush box.
Quote:
Originally Posted by Frank Lee
Why would a 7 speed be better than a 6 speed with a proper top gear?  |
More gears give it more options to select what is the best option for the speed / power required.
It also allows the top gear to be a rather long overdrive.
On the VAG's 7 speed DSG, the gearing is quite a bit better than on comparable (same engine) manuals.
Because they can ...