Quote:
Originally Posted by travislambert
The extra gear is only an overdrive gear. Both the M6 and M7 will always have a 1:1 ratio in forth, so these transmissions for all intents and purposes are equivalent in the first 4 gears.
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Right but the extra overdrive allows for much more aggressive gearing. Most M6 cars came with 3.42 or 3.73 depending on tire height and they really need 4.10 or 4.30 for better shift extension and keep the engine in it's power. The M7 allows this and keeps RPMs down while interstate cruising.