The AWD systems used by Audi and MB are very different. MB uses three open
differentials along with the electronics of the ABS system to prevent
wheelspin when a tire loses traction. Audi uses a completely mechanical
system made up of Torsen differentials which still allow each wheel to
rotate independently, but prevent free wheelspin. Both systems perform
quite well. In fact, I really can't tell them apart when behind the wheel.
As for the vehicles themselves (the A6 vs. the E-Class), they are very
different machines. The A6 is more performance oriented where the E-Class
is more luxury oriented. The A6 will definitely be less expensive, but has
a better warranty. My A6 has been much more reliable than any MB I've owed.
The A6 feels very light and sporty, where the MB will feel heavier and maybe
a bit more sluggish. For the Audi, I would recommend the 2.7T V6 engine
over the 4.3 V8. As shipped, the V8 will have more power, but with an
inexpensive chip upgrade, the 2.7T will easily out perform it and get better
I suggest you spend some time with both vehicles (the A6 and the E) and
choose the one that best fits you and your needs. My guess is that the E500
4MATIC will not be easy to find, and when you do, you will likely pay full
MSRP. A6 Quattro's are plentiful and Audi has been offered some stellar
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.