There are only four places on Earth where you can see a RHD Opel. Ireland, Southern Africa (SA, Namibia, Botswana, etc), New Zealand and Australia (As there was like 3 months where Opel decided to sell cars in Aus/NZ before deciding to sell the Astra as a Holden). I think that Japan may also have RHD Opels, but non-luxury foreign cars are rather unusual sights in Japan.