Does the PHEV system affect its off-road capability?

No, it features the same Intelligent All-Wheel Drive and Terrain Response 2 as the petrol models. For buyers considering the Land Rover Range Rover Sport PHEV, that matters because it affects how easy the car is to live with, whether for commuting, family use, long-distance driving or ownership costs. The useful way to read this is not as an isolated specification, but as a clue to how the car will feel in real daily use.