Any chance of getting this model in the future?
They have been available since GSX was released and even in two variations (2 and 3 axle) and appear if the service exit height of the airplane you use is between 1.62 and 3.20 meters (2 axle version) and from 3.20 to 4.20 mt (3 axle)
For airplanes with service doors lower than 1.65 meters, a catering mini-van (with no lifting platform) will appear instead.