Self leveling suspension and active drive (questions)

[mtech8]

Thanks Fun. That makes sense.

I stopped by my local dealer yesterday. The parts guy had no clue about the self leveling requirement of the 128. But he was more than happy to sell them to me for $6700 (like I'd pay that price). He looked into it and confirmed that the self leveling is a requirement for only this wheel style. He has no idea why.