The Kia K5 (facelift, introduced in October 2023) 2.0 LPI (Liquefied Petroleum Gas) 146 horsepower automatic variant represents a specific configuration within the fourth generation of Kia’s mid-size sedan, known as the K5. This model, positioned as a fuel-efficient and practical option, primarily caters to markets where LPG infrastructure is well-established. The facelift brought updated styling and minor technological enhancements to the K5 range, solidifying its position as a competitive offering in the segment. The K5, replacing the Optima in many markets, aims to blend sporty aesthetics with family-friendly practicality.
Technical Specifications
| Brand | Kia |
| Model | K5 |
| Generation | K5 (facelift 2023) |
| Type (Engine) | 2.0 LPI (146 Hp) Automatic |
| Start of production | October, 2023 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan, Fastback |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 11.8-12.2 l/100 km (19.9 – 19.3 US mpg, 23.9 – 23.2 UK mpg, 8.5 – 8.2 km/l) |
| Fuel consumption (extra urban) | 8.5-8.7 l/100 km (27.7 – 27 US mpg, 33.2 – 32.5 UK mpg, 11.8 – 11.5 km/l) |
| Fuel consumption (combined) | 10.2-10.5 l/100 km (23.1 – 22.4 US mpg, 27.7 – 26.9 UK mpg, 9.8 – 9.5 km/l) |
| CO2 emissions | 134-138 g/km |
| Fuel Type | LPG |
| Weight-to-power ratio | 9.9 kg/Hp, 101 Hp/tonne |
| Weight-to-torque ratio | 7.6 kg/Nm, 132.2 Nm/tonne |
| Power | 146 Hp @ 6000 rpm |
| Power per litre | 73 Hp/l |
| Torque | 191 Nm @ 4200 rpm (140.87 lb.-ft. @ 4200 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | Smartstream |
| Engine displacement | 1999 cm3 (121.99 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 |
| Kerb Weight | 1445-1495 kg (3185.68 – 3295.91 lbs.) |
| Fuel tank capacity | 64 l (16.91 US gal | 14.08 UK gal) |
| Length | 4905 mm (193.11 in.) |
| Width | 1860 mm (73.23 in.) |
| Height | 1445 mm (56.89 in.) |
| Wheelbase | 2850 mm (112.2 in.) |
| Front track | 1610-1623 mm (63.39 – 63.9 in.) |
| Rear track | 1617-1630 mm (63.66 – 64.17 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 | 6 gears, automatic transmission |
| Front suspension | Independent type McPherson |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Wheel rims size | 16; 17; 18 |
Powertrain & Engine Architecture
The heart of the K5 2.0 LPI is Kia’s Smartstream engine, a naturally aspirated 2.0-liter inline-four cylinder engine specifically adapted to run on Liquefied Petroleum Gas (LPG). This engine produces 146 horsepower at 6000 rpm and 191 Nm (140.87 lb-ft) of torque at 4200 rpm. The engine utilizes a multi-port fuel injection system, delivering fuel directly into the intake manifold. The Smartstream engine family is known for its focus on efficiency and reduced emissions, and the LPI variant further emphasizes this with the cleaner-burning properties of LPG. The engine also incorporates a Start & Stop System to conserve fuel during stationary periods. Paired with the engine is a six-speed automatic transmission, chosen for its smooth operation and ease of use, catering to a broader range of drivers.
Driving Characteristics
The 146 hp output and automatic transmission configuration of this K5 variant prioritize comfortable and economical driving over outright performance. Acceleration is adequate for everyday driving situations, but it won’t deliver the briskness of higher-powered K5 trims like those equipped with the turbocharged engines. The six-speed automatic transmission is tuned for fuel efficiency, with gear changes generally smooth and unobtrusive. The gear ratios are optimized for relaxed cruising and minimizing engine revs at highway speeds. Compared to manual transmission versions (where available in other markets), the automatic offers convenience but sacrifices some driver engagement and potentially slightly lower fuel economy. The LPG fuel delivery provides a slightly different engine characteristic compared to gasoline, often resulting in a smoother, quieter operation.
Equipment & Trim Levels
The K5 2.0 LPI Automatic typically comes with a respectable level of standard equipment. This generally includes features like air conditioning, power windows and locks, a touchscreen infotainment system with smartphone integration (Apple CarPlay and Android Auto), and a rearview camera. Higher trim levels within the 2.0 LPI range may add features such as leather upholstery, heated front seats, a sunroof, and advanced driver-assistance systems (ADAS) like lane keeping assist and adaptive cruise control. Interior upholstery is typically cloth on the base trims, with leather options available on higher-spec models. Dashboard configurations are consistent across the K5 range, featuring a modern design with a focus on user-friendliness.
Chassis & Braking
The K5 utilizes a front-wheel-drive layout with an independent McPherson strut suspension in the front and an independent multi-link suspension in the rear. This suspension setup aims to provide a balance between ride comfort and handling stability. The braking system consists of ventilated discs on the front wheels and solid discs on the rear. Anti-lock Braking System (ABS) is standard. The chassis is designed to accommodate the weight of the LPG system without significantly compromising handling. Stabilizer bars are included both front and rear to reduce body roll during cornering, though their thickness may vary depending on the specific trim level.
Market Reception & Comparison
The K5 2.0 LPI Automatic has been well-received in markets where LPG is a popular fuel source, offering a cost-effective alternative to gasoline-powered vehicles. Critics have praised its fuel efficiency and comfortable ride. Compared to other K5 trims, the 2.0 LPI Automatic offers a more economical option, but at the expense of performance. The 1.6L Turbo and 2.5L gasoline engines provide significantly more power and quicker acceleration. However, the LPI variant often boasts lower running costs due to the lower price of LPG compared to gasoline. Reliability is generally good, with the Smartstream engine proving to be a durable unit.
Legacy
The Kia K5 2.0 LPI Automatic represents a pragmatic approach to mid-size sedan ownership, prioritizing fuel efficiency and affordability. While not the most exciting variant in the K5 lineup, it has proven to be a popular choice for drivers seeking a reliable and economical vehicle. The long-term reliability of the Smartstream engine and the six-speed automatic transmission is expected to be good, making this K5 variant a potentially sound investment in the used car market. As LPG infrastructure continues to develop, the K5 2.0 LPI Automatic is likely to remain a relevant and appealing option for budget-conscious buyers.
