Just a quick update, I've only done 200km now and with ACC body roll is virtual nil in all modes even Comfort which is pretty soft in shock absorbing and is still flat around corners. I am sure the system compensates for body roll any way that's all I can report so far. Definitely $1000.00 worth spending. Also $1800.00 for Dynaudio RDC510 is worth getting tremendous clarity and with MDI for $270 just plug in your MP3 with 40CDs in 4GB memory you won't be short of entertainment. 103TDI smooth and effortless, what a ripper.