Look what Mitsubishi's been doing while everyone was distracted by the new hero utes, Ford Ranger and Mazda BT-50. The company has made a bunch of changes to its Triton and none has benefited more than the 2WD GLS. Think not only comfort and convenience, but more power.
In the Mitsubishi pecking order, GLS is as good as it gets in utes, so here's a truck that reeks of lifestyle and the suburbs; a car with a ginormous boot.
You're not likely to see too many tradespeople and rural businesspersons driving around in this version of Mitsi's curvaceous cargo carrier unless, perhaps, they're the boss.
The reason for lavishing extra stuff on the GLS 2WD is simple. As already noted by Driven, city families have taken to double-cab utes in serious numbers as the vehicles become more comfortable and those in the 'burbs realise what versatile vehicles they really are.
However, if you live in town and aren't planning on driving where you're likely to get stuck, why buy into the complication, weight and extra servicing costs of 4WD? Yup, Mitsubishi didn't think so either, hence the upgrades to the 2WD GLS.