[6] The car was developed at the SAIC-GM Pan Asia Technical Automotive Center (PATAC) in Shanghai.

[7] While not visually similar to other GM cars, it has been suggested that the 630 and 610 is based on the Buick Excelle/Daewoo Lacetti platform.

[11] The 630 is powered by a 1.5-litre 4-cylinder 109 bhp (81 kW; 111 PS) 1.5-litre (1,485 cc) engine producing 146 N⋅m (108 lb⋅ft) and mated to a five-speed transmission.

A 1.8-litre (1,796 cc) version, producing 141 bhp (105 kW; 143 PS) and 177 N⋅m (131 lb⋅ft)[12] was added to the range in November 2012.

[13] It can be equipped with front airbags, ABS with EBD, leather seats, power windows, remote central locking, air conditioning, trip computer, a CD player and rear parking sensors.