See also:

Close the windows and glass sunroof
Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption. ...

Saving fuel
The fuel consumption of your vehicle depends on several factors. You can lower fuel consumption and the environmental impact by taking certain measures, adjusting your driving style and having the ...

Communication
All of the options available to you for mobile communication with family, friends, business partners, and service providers are described in this chapter. ...