Quote:
Originally Posted by Fegelein
I was just going to start a thread on this!
Here's my 4.0 M package and my question was about the sport transmission. However, I see the 4.0 doesn't get the exhaust and the 5.0 not the trans?!
Regardless, what's is the "M" sports trans all about?!
Second pic is my M5's trans shifter, etc., wonder how it compares....
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2TB Sport Automatic Transmission is standard on the 40i and 50i.
Congrats on having a fancier shifter. While you can compare the technical aspects the two transmissions, you can't compare the two vehicles.
X7 uses the same ZF 8HP75 transmission as the M5 - but different axle ratios and shifting behavior.
Example, a M5 and my M550i share the same ZF 8HP75 torque-converter transmission. It's largely unmodified from one to the other, with each sharing the same eight transmission ratios while the M5 gets a shorter axle ratio (3.15:1 versus 2.81:1 in the M550i). The M5's converter locks up after about 3 feet of travel and stays locked. The more rigid mounting of the various powertrain elements, results in greater drivetrain stiffness in the M5. The 7-plus percent shorter overall gearing contributes a bit to the M5's generally more eager acceleration feel.