The GCI honestly does not look very good at allI'm really digging the colours. I wish the first drop would be deeper and go into a tunnel to have a more impressive view, but otherwise looks like a solid coaster overall. Happy Valley Chengdu has a pretty 1-2-3 punch with the Mega-lite and GCI woodie honestly!
Usually it's just for testing, if my memory serves me right, they did the same with Baron. Ps, the video has been removed.
There seems to be a lack of a holding brake. Not sure if thats a thing with this ride or just for testing. Its hard to tell