Cynics might assume this is but a way of hyping a three-door version of the existing five-door Astra hatch, but there’s more to it than that.
The only external parts shared between the three- and five-door Astras are the door handles and mirrors. Everything else is unique. The windscreen and rear window have a “faster” slope, the wheels are set more broadly apart and seem to stretch the body out with them. What was once a front grille has shrunk to little more than a winged badge, while the lower air intake has grown. It looks the proper racy coupé, yet it has virtually the same generous interior space as the five-door.” read the full article on IOL Motoring.
A short video of the Opel Astra GTC in action: