I did a little research and it looks like Chevrolet Mexico doesnt even sell the Astra, whether they did in the past I dont know.
I found that Chevrolet Argentina sells an Astra, but not like ours.
They also sell the Vectra, the Vectra GT being a 5door Astra as we know it.
http://www.chevrolet.com.ar/vehiculos/Autos/Vectra-GT/Vectra-GT-Vectra-GT.htmlNotice the antenna, looks like a shark fin type to me. Also check out the interior photos, very odd. It is surprisingly easy to navigate a website in a completely different language. The other Vectra looks to be a 4door sedan Astra.
I then went to Chevrolet Chile
They have the Astra, the proper Astra.
http://www.chevrolet.cl/vehiculos/Autos/Astra-OPC/Astra-OPC-Hatchback-3-puertas.htmlThey have the standard GTC 3door hatchback as well as the OPC high performance Astra. This is the car I wish we had got. And of course the 5door. But even the GTC car has a 2.0L turbo with 6 speed trans.
I doubt ordering any parts would give you any kind of savings, but its interesting to know that countries on this side of the Atlantic have the OPC cars, too bad its on the wrong side of the equator.