Second-generation 6HP 6-speed automatic transmission: faster than human perception
The second-generation 6-speed automatic transmission is undoubtedly a fast transmission and is designed for torques of up to 850 Newton meters. At the heart of the transmission are the turbine-based torsional dampers for gasoline engines and a dual damper converter for diesel engines. They are able to bridge the converter slip period much quicker and therefore result in more direct engine integration for greater responsiveness and optimized fuel consumption. In contrast to the predecessors, the gasoline engine reduces fuel consumption by three percent while the diesel engine saves six percent. A hydraulics system and control software now make it possible to downshift multiple times without any loss of time and also reduce reaction times by 50 percent to below the threshold of human perception.
Here is a good link also.
http://www.just-auto.com/article.aspx?ID=90340
Cheers,
M