What i read from the reviews, up to 100KMs you can change 4WD to 2WD and vice versa on the fly. i believe this is the unique feature of Pajero sport.
"Mitsubishi 4WD System
The Triton’s Easy Select 4WD and Pajero Sport’s Super Select 4WD system offer multi modes for all situations. 2H is for maximising efficiency on tarmac driving while 4H spreads drive 50:50 to all four wheels for more secure traction in slippery conditions. Drivers can switch between this two modes “on the fly” at speeds of up to 100 km/h.
When the going gets tough, there’s 4L mode in the Triton to tackle rough terrain. In this mode, 4WD joined by low range gears for maximum traction through mud or sand. The Pajero Sport’s Super Select 4WD system has two all wheel drive modes – 4HLc and 4LLc, the latter utilises low range gearing and locking differentials. Both models come with Hybrid LSD (Limited Slip Differential), which combines the torque-sensing benefit of helical gears and a speed-sensing benefit of a viscous coupling unit."