[['rd', 'circuit', 'city / state', 'date', 'format', 'round winner', 'car', 'entrant'], ['1', 'symmons plains', 'launceston , tasmania', '5 march', 'one race', 'peter brock', 'holden lx torana a9x', 'marlboro holden dealer team'], ['2', 'oran park', 'sydney , new south wales', '26 march', 'one race', 'peter brock', 'holden lx torana a9x', 'marlboro holden dealer team'], ['3', 'amaroo park', 'sydney , new south wales', '9 april', 'one race', 'allan grice', 'holden lx torana a9x', 'craven mild racing'], ['4', 'sandown', 'melbourne , victoria', '16 april', 'one race', 'ian geoghegan', 'holden lx torana a9x', 'bob jane t - marts'], ['5', 'wanneroo park', 'perth , western australia', '7 may', 'two heats', 'peter brock', 'holden lx torana a9x', 'marlboro holden dealer team'], ['6', 'calder', 'melbourne , victoria', '28 may', 'one race', 'bob morris', 'holden lx torana a9x', 'ron hodgson channel 7 racing team'], ['7', 'lakeside', 'brisbane , queensland', '25 june', 'one race', 'allan moffat', 'ford xc falcon', 'moffat ford dealers']]
Holden Lx Torana A9x was the Car used most in the 1978 Australian Touring Car Championship
[ENT] was the [ENT] used most in the [ENT]