Development of the Torana continued in with the larger mid-sized LH series released in 1974, offered only as a four-door sedan. The LH Torana was one of the few cars worldwide engineered to accommodate four-, six-, and eight-cylinder engines. This trend continued until Holden introduced the Sunbird in 1976, essentially the four-cylinder Torana with a new name. Designated LX, both the Sunbird and Torana introduced a three-door hatchback variant. A final UC update appeared in 1978. During its production run, the Torana achieved legendary racing success in Australia, achieving victories at the Mount Panorama Circuit in Bathurst, New South Wales.