Dr. Leopold Mikulic, Vice President, Powertrain, Mercedes-Benz Development talked to Lou Ann Hammond, CEO, www.carlist.com, at the 2009 Los Angeles autoshow.

Mikulic compared the S400 and ML450h hybrids. When is the 400 and the 450h at their optimum?

What is the difference in fuel efficiency between the gasoline and hybrid vehicles?

The hybrid creates no noise when idling. How does Mercedes-Benz notify the driver when they depart the car and unwittingly leave the car on?