The Chevrolet Optra Magnum is a 4-door sedan manufactured by General Motors Corporation. The Optra Magnum carries over from the Chevrolet Optra and is the first diesel car launched by GM in India. India is the third location, after Europe and Korea, where the Optra Magnum has been launched. It is available in six variants - the 2.0 MAX TCDi, 2.0 LS TCDi, 2.0 LT TCDi, 1.6 LS, 1.6 LT and 1.6 MAX.

The Optra Magnum features some new technologies such as dual mass flywheel, which helps in reducing vibration while idling, and a balanced shaft module, which guarantees refined and smooth engine operation. The 2.0L variants of the Optra Magnum are powered by a standard 2.0-liter TCDi (Turbo Common Rail Direct Injection) diesel engine, which churns out a maximum power of 119 bhp at 3,000 rpm and 314 Nm of torque at 2,125 rpm. The engine features four cylinders, 16 valves and a Single Overhead Camshaft (SOHC). And the 1.6L variants are powered by a standard 1.6-liter VGIS (Variable Geometry Intake System) petrol engine, which churns out a maximum power of 203 bhp at 5800 rpm and 148 Nm of torque at 4000 rpm. The engine features four cylinders, 16 valves and a Double Overhead Camshaft (DOHC). Both the engines are linked to a standard 5-speed manual transmission. The engine delivers decent acceleration and the transmission also shifts smoothly.

The Optra Magnum rides on McPherson Struts with anti-roll bars in the front as well as the rear. It is also equipped with twin-tube gas-filled shock absorbers. With this suspension system, the Optra Magnum can brave all sorts of road irregularities and offers a smooth ride. Ventilated disc brakes in the front and disc brakes at the rear offer forceful stopping power, with short stopping distances, to the Optra Magnum. A power steering, which offers quick and prompt responses, gives direction to the Optra Magnum.

The Optra Magnum rides high on a wave of style. With smooth flowing lines and curved corners, it looks different from other sedans available in the market today. It measures more than 14 feet in length, while its wheelbase measures 8.5 feet. The Optra Magnum rolls on 6J x 15 wheels and 195/60 R15 tyres. However, the MAX comes with steel wheels, while the LS and LT wear alloy wheels. The Optra Magnum also boasts of 360-degree air vents for surround cooling effect. It also comes standard with power windows and power door locks. Also standard on all variants are a cooled glovebox, a rear window defogger with timer, clutch foot rest and electrically-adjustable outside rear-view mirrors with turn indicators.