There seems to be this perception that 4WDs have some inherent centre of gravity problem. It goes without saying that any larger vehicle has a higher centre of gravity.
But it should be noted that the height of the BODY of a vehicle is almost irrelevant to its centre of gravity: the majority of the mass of a heavy 4WD vehicle is in the engine, gearbox, chassis, fuel tanks and drive train.
The centre of mass of these components is actually only a little higher than a sedan vehicle: it is only that height which is the difference of the larger tyres and rims that are fitted plus a little. Any engineer will tell you why: it’s to do with how drive trains and how universal joints have to work (this does not take into account highly “lifted” competition vehicles).
In order of rollover ease (highest to lowest) you could classify vehicles: B-Double, Semi Trailer, Heavy Truck, Bus, Light Truck/Delivery Van, Heavy 4WD, People Mover, Light 4WD, Sedan, Sports Car, Go Kart.
This is completely consistent with a study carried out by Monash University and the Victorian police which in fact found that the large four-wheel drives are not as easy to roll over as has been portrayed. In fact several of the utility style vehicles were substantially more likely to roll over than the Heavy 4WDs.
As to dynamic handling there are many vehicles which have scored less than a sports car in the moose/swerve/hook/slalom test. The classic was the Mercedes A160 which rolled when a journalist tested the vehicle! Further a fully loaded vehicle will have very different characteristics than an unloaded one: a delivery van for example.
Why is the 4WD singled out for special mention as to its handling?