Yes - they are beautiful models, and in the proper scale for the track gauge. But motorizing them does little to make them better. You would really need a better engine bed and metal drivers, with a good NWSL gearbox and an 8000-series Pittman or equivalent. I had one, motorized, and loved the detail, but as a runner it sucked.
The KTM version is 1/4" scale, and not as well detailed, but it will run better. They are showing up at around $450 on eBay.