The waterboxer running properly is quite capable. VW went to great pains to make it "ping" resistant and able to run loaded for extended periods. It is only when mods are done even with good intentions that limits get met and things really go wrong. Simple things like oversized tires or incorrect adjustments bring these machines to the end. 

Dennis

What is wrong with driving within the capability of the vehicle?  I have never experienced pinging with my '91 Campmobile with 2.1 Waterboxer engine.  But then, I let it slow down on a grade, downshifting the manual transmission when I feel it start to lug.  I drive at 58 mph generally on the highway, and I let the wind slow me down if necessary.  I just don't see the need to try to drive the thing like it is a "performance" car.  For that matter, I don't see the need for "performance cars."

David McNeely