The fourth generation debuted at the Paris Motor Show on 30 September 2006 with the series code "NS". Revised interior and exterior styling were accompanied by dual-stage SRS front airbags as well as new side-impact and curtain airbags. The chassis was a mildly improved monocoque with Mitsubishi's RISE technology as featured in the previous generation. The innovative Super-Select 4WD II system was retained, complemented by an improved Active Stability & Traction Control (ASTC) system and electronic brakeforce distribution with of ground clearance and a 700mm wading depth — as well as more extensive skid plating, a carbon-fibre-wrapped rear driveshaft and aluminium bonnet to reduce weight. The fourth generation retained the same fully-independent suspension as the previous generation, with improvements to the rear axle assembly for improved strength and reliability off road as well as 17" alloy wheels on GLS trim. Brakes too were upgraded to larger 332mm front rotors on LWB versions. SWB versions retained the 289mm rotors from the previous generation until later in production.