This site is maintained by Harald Pietschmann to provide answers for 4WD related questions and to offer four wheel drive driving tips. The site offers valuable information about Mercedes-Benz M-Class & G-Class vehicles. This site is also home for Rubicon Trail information. latest magazine writeup 2010 event calendar 4x4 off-road training courses Rubicon Trail off-road adventure trips Baja California Adventure Tours How many snow tire chains do you need on a 4WD or AWD vehicle? How fast can I drive in 4WD or AWD? all 4WD and AWD systems on one page - easy to understand overview 4WD, AWD, traction control and stability control Does your car have ESC or ESP (stability control) ? The renaissance of VCD as a safety feature You got stuck with only one wheel per axle spinning? What's the difference between 4 high (4 Hi) and 4 low (4 Lo)? Enter your search terms Submit search form   Web www.4x4abc.com www.rubicon-trail.com  contact me Copyright © 1996-2010 Harald Pietschmann. All rights reserved. Site created and all content by H.Pietschmann