Taking my 2004 Mercedes Benz M-Class ML270 CDi W163 on moderate to challenging sections on various tracks surrounding Possum Brush, NSW Australia. W163 Mercedes has 10mm alloy spacers on rear coils with heavy duty extended springs (kingsprings). Tyres are 265/70/R17's BFGoodrich KO2. Front torsion bar tightened up to maximum. Rear swaybar/stabilizer removed. Low range enabled, ESP on and off depending on the scene (still experimenting with both options).