The Kia Sonet, particularly the facelifted version introduced in December 2023, represents Kia’s entry into the highly competitive subcompact SUV/crossover segment. The G1.2 Smartstream variant, producing 83 horsepower, serves as the base engine option for the model in many markets, including India and select regions in Asia and South America. This version is positioned as an affordable and fuel-efficient choice for urban commuters and first-time car buyers. The 2023 facelift brought styling updates, enhanced technology, and refinements to the existing platform, building upon the initial Sonet launch. It’s built on Kia’s compact front-wheel-drive platform, sharing architecture with the Hyundai Venue.
Technical Specifications
| Brand | Kia |
| Model | Sonet |
| Generation | Sonet (facelift 2023) |
| Type (Engine) | G1.2 Smartstream (83 Hp) |
| Start of production | December, 2023 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | SUV, Crossover |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Power | 83 Hp @ 6000 rpm |
| Power per litre | 69.3 Hp/l |
| Torque | 115 Nm @ 4200 rpm |
| Torque (lb.-ft.) | 84.82 lb.-ft. @ 4200 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | Smartstream |
| Engine displacement | 1197 cm3 |
| Engine displacement (cu. in.) | 73.05 cu. in. |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Engine systems | Start & Stop System |
| Trunk (boot) space – minimum | 385 l |
| Trunk (boot) space (cu. ft.) | 13.6 cu. ft. |
| Fuel tank capacity | 45 l |
| Fuel tank capacity (US gal) | 11.89 US gal |
| Fuel tank capacity (UK gal) | 9.9 UK gal |
| Length | 3995 mm |
| Length (in.) | 157.28 in. |
| Width | 1790 mm |
| Width (in.) | 70.47 in. |
| Height | 1642 mm |
| Height (in.) | 64.65 in. |
| Wheelbase | 2500 mm |
| Wheelbase (in.) | 98.43 in. |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front suspension | Coil spring, Independent type McPherson |
| Rear suspension | Coil spring, Torsion |
| Front brakes | Disc |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 195/65 R15; 215/60 R16 |
| Wheel rims size | 15; 16 |
Powertrain & Engine Architecture
The heart of the Sonet G1.2 is Kia’s Smartstream G1.2-liter inline-four cylinder naturally aspirated gasoline engine. This engine utilizes a multi-point fuel injection system, delivering fuel directly into the intake manifold. The engine features a dual overhead camshaft (DOHC) valvetrain with four valves per cylinder, optimizing airflow for improved efficiency and power output. The engine code is specific to the Smartstream family, and while variations exist, the core architecture remains consistent. The 5-speed manual transmission is the sole transmission option paired with this engine, prioritizing simplicity and affordability. The transmission is a conventional setup, designed for smooth and reliable operation. The inclusion of a Start & Stop System further enhances fuel economy by automatically shutting off the engine when the vehicle is stationary.
Driving Characteristics
The 83 horsepower output of the G1.2 Smartstream engine translates to modest, but adequate, performance for city driving. Acceleration is not brisk, and overtaking maneuvers require careful planning. The 5-speed manual transmission allows drivers to maintain optimal engine speed for the given conditions. The gear ratios are tuned for fuel efficiency rather than outright performance. Compared to higher-trim Sonet models equipped with the 1.0-liter turbocharged engine or the 1.5-liter diesel, the G1.2 feels noticeably less powerful. However, the naturally aspirated engine delivers a more linear power delivery, making it predictable and easy to control, especially for new drivers. The front-wheel-drive configuration provides decent traction in normal conditions, but lacks the all-weather capability of an all-wheel-drive system.
Equipment & Trim Levels
The G1.2 Smartstream variant typically represents the entry-level trim of the Sonet lineup. Standard features generally include air conditioning, power windows, central locking, and a basic audio system. Safety features such as dual airbags and ABS are also standard. Higher trim levels add features like alloy wheels, a touchscreen infotainment system with Apple CarPlay and Android Auto compatibility, rear parking sensors, and a rearview camera. Interior upholstery is typically cloth, with a focus on durability and practicality. Optional extras may include a sunroof, automatic climate control, and upgraded audio systems. The overall interior design is modern and functional, with a focus on maximizing space within the compact dimensions of the vehicle.
Chassis & Braking
The Sonet utilizes a McPherson strut front suspension and a torsion beam rear suspension. This setup provides a comfortable ride quality, absorbing bumps and irregularities in the road surface effectively. The front brakes are disc brakes, providing adequate stopping power, while the rear brakes are drum brakes, a cost-saving measure common in this segment. The electric power steering system offers light and precise steering feel, making it easy to maneuver in tight spaces. Stabilizer bars are included to reduce body roll during cornering. The suspension tuning is geared towards comfort rather than sporty handling, prioritizing a smooth and predictable driving experience.
Market Reception & Comparison
The Kia Sonet G1.2 Smartstream has been well-received in markets where affordability is a key consideration. Critics have praised its fuel efficiency, comfortable ride, and spacious interior for its size. However, the engine’s lack of power has been a common criticism. Compared to competitors like the Hyundai Venue, Maruti Suzuki Brezza, and Tata Nexon, the Sonet offers a compelling combination of features, value, and styling. The G1.2 variant typically achieves better fuel economy than the turbocharged or diesel options, making it an attractive choice for budget-conscious buyers. Reliability has been generally good, with few reported issues specific to the G1.2 powertrain.
Legacy
The Kia Sonet G1.2 Smartstream powertrain, while not a performance powerhouse, has proven to be a reliable and durable unit. Its simplicity and robust design contribute to its longevity. In the used car market, these models are often sought after by buyers looking for an affordable and fuel-efficient subcompact SUV. The Smartstream engine family represents Kia’s commitment to developing efficient and reliable powertrains for the mass market. As Kia continues to expand its global presence, the Sonet and its G1.2 engine will likely remain important players in the subcompact SUV segment for years to come.
