The Range Rover V8 has active sway bars, which help keep it flat and controlled during cornering, but disconnect at lower speeds to smooth the ride and offer greater off-road suspension articulation. This helps keep the tires glued to the road on-road and off. The XC90 doesn’t offer an active sway bar system.
The front and rear suspension of the Range Rover uses air springs for a smoother, controlled ride than the XC90, which uses coil springs in front and transverse leafs springs in the rear. Air springs maintain proper ride height and ride more smoothly.
The Range Rover’s drift compensation steering can automatically compensate for road conditions which would cause the vehicle to drift from side to side, helping the driver to keep the vehicle straight more easily. The XC90 doesn’t offer drift compensation steering.
The Range Rover SVAutobiography handles at .78 G’s, while the XC90 T6 AWD pulls only .77 G’s of cornering force in a Car and Driver skidpad test.
For greater off-road capability the Range Rover has a 2.9 inches greater minimum ground clearance than the XC90 (11.7 vs. 8.8 inches), allowing the Range Rover to travel over rougher terrain without being stopped or damaged. The Range Rover’s minimum ground clearance is 1.8 inches higher than on the XC90 w/Air Suspension (11.7 vs. 9.9 inches).