Complex sentence: As a result of this, New Zealand was the only major market in the world where the Telstar and Sierra were sold alongside one another, and it was not until 1988, that a Telstar wagon-unique to Japan and New Zealand-became available.
Split into simpler sentences: As a result of this, New Zealand was the only major market in the world where the Telstar and Sierra were sold alongside one another. In 1988, a Telstar wagon-unique to Japan and New Zealand-became available.