Evergrande NewEnergy Vehicle Group, the car making arm of China's biggest property developer China Evergrande, on Wednesday morning unveiled three new models under the Hengchi brand – Hengchi 7, Hengchi 8, and Hengchi 9.

The Hengchi 7 is an all-electric B-class luxury sedan, Hengchi 8 is an all-electric C-class luxury coupe, and Hengchi 9 is an all-electric B-class luxury midsize SUV.

These three models bring Evergrande's total number of electric vehicle models to nine.

Evergrande NewEnergy Vehicle's stock traded in Hong Kong surged by 18.56 percent in early Wednesday trading on the news.

On August 3 2020, Evergrande unveiled six all-electric vehicles, from Hengchi1 to Hengchi6.

The six models cover all classes from A to D and include passenger car models such as sedans, SUVs, and MPVs. Hengchi says the vehicles will be mass-produced in 2021.

Last week, the company started winter testing of its first production vehicle, the Hengchi 1, in the cold environment of northern China's Inner Mongolia.

The temperature at the test site has been as low as -35℃, testing the low-temperature performance of Evergrande's electric car.

Hui Ka Yan, Founder, and Chairman of Evergrande, announced the opening of the test event and witnessed the Hengchi electric vehicles drive on the snow at a fast pace.

Evergrande starts winter testing of its vehicles in -35°C environment