A total of 30 car lines sold by GM's joint ventures in China were eligible for the 50% vehicle purchase tax cut from October 1 through the end of 2016. The government reduced the tax levied on new passenger vehicles with engines of 1.6 litres and under to 5% from the previous 10%. GM and its joint ventures have a total 128 trim levels that will benefit from this incentive policy, the automaker said.

Products with engines of 1.6 litres and below accounted for about 80% of GM's passenger vehicle and light van sales in China in the first eight months of 2015.

Models such as the Opel Astra-based Buick Excelle GT are eligible for the new incentive.

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