The Proton Iriz (facelift 2017) 1.6, producing 109 horsepower with a Continuously Variable Transmission (CVT), represents a significant update to Proton’s B-segment hatchback. Introduced in 2017 and remaining in production through 2018, this variant aimed to offer a balance of affordability, fuel efficiency, and modern features within the Malaysian automotive market. It falls within the broader Iriz range, which was initially launched in 2014 as Proton’s attempt to compete with established players in the subcompact car segment. The facelift brought revised styling, improved interior materials, and crucially, the introduction of the CVT transmission option alongside the existing manual gearbox.
Technical Specifications
| Brand | Proton |
| Model | Iriz |
| Generation | Iriz (facelift 2017) |
| Type (Engine) | 1.6 (109 Hp) CVT |
| Start of production | 2017 |
| End of production | 2018 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 5 |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 10.9 kg/Hp, 92 Hp/tonne |
| Weight-to-torque ratio | 7.9 kg/Nm, 126.6 Nm/tonne |
| Power | 109 Hp @ 5750 rpm |
| Power per litre | 68.3 Hp/l |
| Torque | 150 Nm @ 4000 rpm, 110.63 lb.-ft. @ 4000 rpm |
| Engine layout | Front, Transverse |
| Engine displacement | 1597 cm3, 97.45 cu. in. |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 76 mm, 2.99 in. |
| Piston Stroke | 88 mm, 3.46 in. |
| Compression ratio | 10:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC-VVT |
| Engine oil capacity | 4.05 l, 4.28 US qt | 3.56 UK qt |
| Kerb Weight | 1185 kg, 2612.48 lbs |
| Trunk (boot) space – minimum | 215 l, 7.59 cu. ft |
| Trunk (boot) space – maximum | 270 l, 9.53 cu. ft |
| Fuel tank capacity | 40 l, 10.57 US gal | 8.8 UK gal |
| Length | 3920 mm, 154.33 in |
| Width | 1722 mm, 67.8 in |
| Height | 1554 mm, 61.18 in |
| Wheelbase | 2555 mm, 100.59 in |
| Ride height (ground clearance) | 155 mm, 6.1 in |
| Minimum turning circle (turning diameter) | 10 m, 32.81 ft |
| 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 CVT |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | independent torsion suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 185/55 R15 |
| Wheel rims size | 6.5J x 15 |
Powertrain & Engine Architecture
The 2017 Iriz 1.6 CVT is powered by Proton’s CamPro 1.6-liter inline-four engine. This engine, designated as the E13, utilizes a multi-point fuel injection system and a double overhead camshaft (DOHC) with variable valve timing (VVT) on the intake camshaft. The engine’s 1597cc displacement and 10:1 compression ratio contribute to its 109 horsepower output at 5750 rpm and 150 Nm (110.63 lb-ft) of torque at 4000 rpm. The CVT transmission, sourced from Punch Powertrain, is a six-speed unit designed to provide smooth acceleration and improved fuel economy compared to a traditional automatic transmission. Unlike some CVTs that simulate fixed gear ratios, this unit offers a more seamless and continuously variable experience.
Driving Characteristics
The Iriz 1.6 CVT offers a comfortable and relatively refined driving experience, particularly in urban environments. The CVT transmission eliminates the harsh shifts often associated with older automatic gearboxes, providing a smooth and linear power delivery. However, the CVT does exhibit the characteristic “rubber band” effect, where engine speed rises before corresponding acceleration is felt. Compared to the five-speed manual version of the Iriz 1.6, the CVT prioritizes fuel efficiency and ease of use over outright performance. The manual transmission provides a more engaging driving experience and slightly quicker acceleration, but the CVT is preferred by drivers seeking a more relaxed and convenient driving style. The power delivery is adequate for everyday driving, but the Iriz 1.6 CVT isn’t particularly sporty or quick.
Equipment & Trim Levels
The Iriz 1.6 CVT was typically offered in a mid-range trim level, positioned above the base 1.3-liter variants but below the more premium options. Standard features included air conditioning, power windows, power steering, central locking, and an audio system with USB connectivity. Safety features such as dual airbags and ABS were also standard. Optional extras often included alloy wheels, a touchscreen infotainment system, reverse parking sensors, and upgraded interior trim. The interior generally featured a functional, if somewhat basic, design with durable materials. Upholstery was typically cloth, and the dashboard layout was straightforward and easy to use.
Chassis & Braking
The Iriz utilizes a McPherson strut suspension setup at the front and a torsion beam suspension at the rear. This configuration provides a reasonable balance between ride comfort and handling. The front brakes are ventilated discs, offering adequate stopping power, while the rear brakes are drums, a cost-saving measure common in this segment. The electric power steering provides light and easy steering, making it well-suited for city driving. The 185/55 R15 tires offer a good compromise between grip and fuel efficiency. The chassis, while not particularly sophisticated, is reasonably rigid and provides a stable platform for everyday driving.
Market Reception & Comparison
The Proton Iriz 1.6 CVT was generally well-received in the Malaysian market as a practical and affordable hatchback. Critics praised its improved ride quality and the convenience of the CVT transmission. However, some reviewers noted the engine’s lack of outright power and the CVT’s tendency to exhibit the “rubber band” effect. Compared to competitors like the Perodua Myvi, the Iriz 1.6 CVT offered a slightly more refined driving experience but was often priced higher. Fuel economy was a strong point, with the CVT helping to achieve competitive figures in real-world driving conditions. Reliability was generally considered average, with some reports of minor issues with the CVT transmission.
Legacy
The Proton Iriz 1.6 CVT represents a step forward for Proton in terms of design, technology, and refinement. While it didn’t achieve the sales success of some of its competitors, it helped to establish Proton as a more credible player in the B-segment hatchback market. In the used car market, the Iriz 1.6 CVT remains a relatively affordable and practical option. The CamPro 1.6 engine is generally considered reliable, although regular maintenance is essential. The CVT transmission, while generally durable, may require more careful servicing than a traditional automatic gearbox. Overall, the Iriz 1.6 CVT offers a decent value proposition for buyers seeking a comfortable, fuel-efficient, and affordable hatchback.
