The Hyundai Stargazer Cartenz X (facelift 2025) G1.5 Smartstream (115 Hp) IVT represents a mid-cycle refresh of Hyundai’s popular family vehicle, primarily targeted towards the Indonesian and broader Southeast Asian markets. Introduced in July 2025, this variant builds upon the original Stargazer platform (codenamed HX10) offering a blend of MPV practicality and crossover styling. The Cartenz X facelift brings updated aesthetics and minor mechanical refinements, while the G1.5 Smartstream engine paired with an IVT (Intelligent Variable Transmission) aims to provide a balance of fuel efficiency and adequate performance for everyday family use. This configuration positions itself as a mainstream offering within the Stargazer lineup, appealing to buyers seeking a comfortable and affordable six or seven-seater vehicle.
Technical Specifications
| Brand | Hyundai |
| Model | Stargazer |
| Generation | Stargazer Cartenz X (facelift 2025) |
| Type (Engine) | G1.5 Smartstream (115 Hp) IVT |
| Start of production | July, 2025 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Crossover, MPV |
| Seats | 6 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Power | 115 Hp @ 6300 rpm |
| Power per litre | 76.8 Hp/l |
| Torque | 144 Nm @ 4500 rpm / 106.21 lb.-ft. @ 4500 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | Smartstream / G4FL |
| Engine displacement | 1497 cm3 / 91.35 cu. in. |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 75.6 mm / 2.98 in. |
| Piston Stroke | 83.4 mm / 3.28 in. |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 3.8 l / 4.02 US qt | 3.34 UK qt |
| Coolant | 5.2 l / 5.49 US qt | 4.58 UK qt |
| Trunk (boot) space – minimum | 185 l / 6.53 cu. ft. |
| Trunk (boot) space – maximum | 585 l / 20.66 cu. ft. |
| Length | 4610 mm / 181.5 in. |
| Width | 1820 mm / 71.65 in. |
| Height | 1740 mm / 68.5 in. |
| Wheelbase | 2780 mm / 109.45 in. |
| Ride height (ground clearance) | 205 mm / 8.07 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 | automatic transmission IVT |
| Front suspension | Independent type McPherson |
| Rear suspension | Torsion |
| Front brakes | Ventilated discs, 381 mm |
| Rear brakes | Disc, 355.6 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 205/50 R17 |
| Wheel rims size | 6.5J x 17 |
Powertrain & Engine Architecture
The heart of the Stargazer Cartenz X 1.5 IVT is Hyundai’s G4FL Smartstream engine, a 1.5-liter naturally aspirated inline-four cylinder gasoline engine. This engine utilizes a multi-point fuel injection system and a double overhead camshaft (DOHC) valvetrain. The Smartstream designation indicates Hyundai’s focus on improved thermal efficiency and reduced friction. While specific details on the G4FL’s internal improvements are limited, it builds upon previous Hyundai engine designs. The engine produces 115 horsepower at 6,300 rpm and 144 Nm (106.21 lb-ft) of torque at 4,500 rpm. The engine is paired with Hyundai’s IVT (Intelligent Variable Transmission), a continuously variable transmission designed to mimic the feel of traditional automatic gearboxes while optimizing fuel economy. Unlike some CVTs, the IVT is tuned to provide stepped “gear” changes for a more familiar driving experience.
Driving Characteristics
The 1.5-liter Smartstream engine and IVT combination in the Stargazer Cartenz X delivers adequate, but not particularly spirited, performance. Acceleration is linear and predictable, suitable for urban commuting and highway cruising. The IVT effectively keeps the engine within its optimal power band, but doesn’t offer the quick responsiveness of a traditional automatic or dual-clutch transmission. Compared to potential higher-output engine options (if offered in other Stargazer variants), this configuration prioritizes fuel efficiency over outright speed. The IVT’s programming minimizes engine noise during gentle acceleration, contributing to a quieter cabin experience. However, under hard acceleration, the engine can become noticeably vocal. The front-wheel-drive layout provides predictable handling, and the suspension is tuned for comfort rather than sporty dynamics.
Equipment & Trim Levels
The Cartenz X trim level, when equipped with the 1.5 IVT powertrain, typically includes a comprehensive set of standard features. These generally include air conditioning, power windows and locks, a touchscreen infotainment system with smartphone integration (Apple CarPlay and Android Auto), and basic safety features like ABS and airbags. Higher trim levels within the Stargazer range may add features such as leather upholstery, automatic climate control, a reverse camera, and advanced driver-assistance systems (ADAS). The interior design of the Cartenz X is functional and modern, with a focus on maximizing space and practicality. Upholstery is typically cloth, with optional leather available on higher trims. The dashboard layout is straightforward and user-friendly.
Chassis & Braking
The Stargazer Cartenz X utilizes a front-wheel-drive chassis with an independent McPherson strut suspension at the front and a torsion beam suspension at the rear. This suspension setup is designed to provide a comfortable ride quality, absorbing bumps and irregularities in the road surface effectively. The braking system consists of ventilated discs at the front and solid discs at the rear. ABS (Anti-lock Braking System) is standard, enhancing braking performance and stability in emergency situations. Steering is rack-and-pinion with electric power assistance, providing light and precise steering feel.
Market Reception & Comparison
The Hyundai Stargazer, and specifically the 1.5 IVT variant, has been well-received in its target markets, particularly Indonesia. Critics have praised its spacious interior, comfortable ride, and competitive pricing. The IVT transmission has been noted for its smooth operation and contribution to fuel efficiency. Compared to other MPVs and crossovers in the same segment, the Stargazer offers a compelling combination of features and value. While some reviewers have noted the engine’s lack of outright power, it is generally considered adequate for its intended purpose. Fuel economy figures are competitive, typically ranging from 15-18 km/l (approximately 35-42 mpg) in mixed driving conditions.
Legacy
The Hyundai Stargazer represents Hyundai’s continued expansion into the affordable family vehicle segment in Southeast Asia. The G1.5 Smartstream engine and IVT powertrain are expected to be relatively reliable, based on Hyundai’s track record with similar technologies. As a relatively new model, long-term reliability data is still emerging. However, the engine’s simple design and the IVT’s robust construction suggest it should provide years of dependable service with proper maintenance. On the used car market, the Stargazer is expected to hold its value reasonably well, given its practicality, fuel efficiency, and Hyundai’s growing brand reputation.
