Gate models are way below what UT or AUTOart contemporary line is .
If you look at any gate model (take the Porsche 996 for eg) you will see roughly the same detail on the exterior as I believe the same moulds are used , but interior detail is less and where the gate brand really lets itself down concerns their paint process .
Every gate model I own has been painted with the doors/boot/bonnet closed so when you open them up you will find the door shuts , bonnet shuts etc are bare metal and remain unpainted.
At least UT had the sense to fully paint the model inside and out .
This cost cutting by Gate means a cheaper model , but also a less desireable one too.
The big difference between AUTOart's models and Gate's is the details. Some cars, like a few Porsche models, use the same exact mold. The big difference will be the quality of the paint, wheels, carpet and interior detail. But if you dissamble both and strip the paint you will not be able to say which is which.
Some of the dealer edition Porsches are made by Gate...as a couple have already said, stuff like the paintwork is superb, but when you look at the details in the interior and missing brake calipers, they are definately below par