How many gears are too many?

Dr. Ludger Reckman is the CEO of ZF Group. ZF Group is one of the top-10 automotive industry suppliers globally. It is a leading worldwide supplier of driveline and chassis technology. ZF’s goal is to design products that improve driving dynamics, fuel efficiency, environmental impact, comfort and safety for OEMs.

ZF has a workforce of about 70,000 employees, the company operates 117 plants in 26 countries. ZF Group had sales of $12.9 billion in 2010, with five percent of that going into research and development.

What is the difference in fuel economy between an eight-speed and nine-speed transmissions?

At one point does an eight-speed and nine-speed transmission become a CVT?

ZF is producing hybrid transmissions. Which car companies will be using them?

ZF already works with Korean companies. They are producing plug-in hybrid transmissions. Is that in hopes of luring the Japanese?