Complex sentence: Unlike the Cortina, or its Sierra successor, the Telstar was usually only available as a sedan or hatchback (known as the TX5), although a Telstar version of the 626 wagon was sold in Japan and New Zealand.
Split into simpler sentences: Unlike the Cortina, or its Sierra successor, the Telstar was usually only available as a sedan or hatchback (known as the TX5). However a Telstar version of the 626 wagon was sold in Japan and also New Zealand.