The BYD Song Plus DM-i 1.5 18.3 kWh (218 Hp) is a plug-in hybrid SUV produced by the Chinese automaker BYD. Introduced with the facelift in July 2024, this variant represents a significant step in BYD’s strategy to offer efficient and technologically advanced vehicles, primarily targeting the rapidly growing Chinese automotive market. The Song Plus DM-i occupies a mid-range position within the Song Plus lineup, offering a balance between affordability, fuel economy, and performance. It builds upon the foundation of the 1HX0/A3 platform, leveraging BYD’s expertise in battery technology and electric powertrain systems.
Technical Specifications
| Brand | BYD |
| Model | Song |
| Generation | Song Plus (facelift 2023) |
| Type (Engine) | DM-i 1.5 18.3 kWh (218 Hp) Plug-in Hybrid E-CVT |
| Start of production | July, 2024 |
| Powertrain Architecture | PHEV (Plug-in Hybrid Electric Vehicle) |
| Body type | SUV |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (combined) | 4.95 l/100 km (47.5 US mpg, 57.1 UK mpg, 20.2 km/l) |
| Fuel Type | Petrol / electricity |
| Acceleration 0 – 100 km/h | 7.7 sec |
| Acceleration 0 – 62 mph | 7.7 sec |
| Acceleration 0 – 60 mph | 7.3 sec |
| Maximum speed | 180 km/h (111.85 mph) |
| Emission standard | China VI |
| Gross battery capacity | 18.3 kWh |
| Battery technology | Lithium iron phosphate (LiFePO4) |
| Battery location | Below the floor |
| All-electric range (CLTC) | 112 km (69.59 mi) |
| Electric motor power | 218 Hp |
| Electric motor Torque | 260 Nm (191.77 lb.-ft.) |
| Electric motor location | Front, Transverse |
| Electric motor type | Synchronous |
| System power | 218 Hp |
| System torque | 260 Nm (191.77 lb.-ft.) |
| Power | 101 Hp |
| Torque | 126 Nm (92.93 lb.-ft.) |
| Engine layout | Front, Transverse |
| Engine Model/Code | Xiaoyun |
| Engine displacement | 1498 cm3 (91.41 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 |
| Valvetrain | DOHC, VVT |
| Engine oil capacity | 3 l (3.17 US qt | 2.64 UK qt) |
| Fuel tank capacity | 60 l (15.85 US gal | 13.2 UK gal) |
| Length | 4775 mm (187.99 in.) |
| Width | 1890 mm (74.41 in.) |
| Height | 1670 mm (65.75 in.) |
| Wheelbase | 2765 mm (108.86 in.) |
| Front track | 1630 mm (64.17 in.) |
| Rear track | 1630 mm (64.17 in.) |
| Minimum turning circle | 11.1 m (36.42 ft.) |
| Drivetrain | Front wheel drive |
| Gearbox | automatic transmission E-CVT |
| 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 |
| Tires size | 235/50 R19 |
| Wheel rims size | 19 |
Powertrain & Engine Architecture
The Song Plus DM-i 1.5 utilizes a plug-in hybrid powertrain centered around a 1.5-liter, naturally aspirated inline-four cylinder engine (code-named Xiaoyun). This engine produces 101 horsepower and 92.93 lb.-ft. of torque. The engine is paired with a 18.3 kWh Lithium Iron Phosphate (LiFePO4) battery pack and a powerful electric motor generating 218 horsepower and 191.77 lb.-ft. of torque. The system’s combined output is 218 horsepower. The ‘DM-i’ designation signifies BYD’s Dual Mode-i technology, prioritizing electric drive whenever possible. The E-CVT (electronically controlled continuously variable transmission) seamlessly blends power from the engine and electric motor, optimizing efficiency and responsiveness. The engine employs multi-port fuel injection and a Double Overhead Camshaft (DOHC) valvetrain with Variable Valve Timing (VVT) to enhance combustion efficiency.
Driving Characteristics
The 1.5 DM-i powertrain delivers a smooth and refined driving experience. In typical driving scenarios, the vehicle operates in electric-only mode, providing near-silent acceleration and instant torque. The E-CVT transmission contributes to seamless gear changes, enhancing comfort. When additional power is needed, or the battery is depleted, the gasoline engine seamlessly engages. While not as overtly sporty as some competitors, the 7.7-second 0-60 mph acceleration is respectable for a vehicle in this class. The focus is clearly on efficiency and comfort rather than outright performance. Compared to higher-output versions of the Song Plus, this variant offers a more relaxed and economical driving experience.
Equipment & Trim Levels
The Song Plus DM-i 1.5 typically comes well-equipped, even in its base trim. Standard features generally include a large touchscreen infotainment system, a digital instrument cluster, automatic climate control, and a suite of advanced driver-assistance systems (ADAS) such as adaptive cruise control, lane keeping assist, and automatic emergency braking. Interior upholstery is typically a combination of fabric and leatherette. Optional extras often include a panoramic sunroof, premium audio system, heated and ventilated front seats, and upgraded interior trim materials. The specific features available vary depending on the region and optional packages selected.
Chassis & Braking
The Song Plus DM-i 1.5 features a front-wheel-drive layout. The suspension utilizes an independent McPherson strut setup at the front and an independent multi-link suspension at the rear, providing a comfortable ride and stable handling. Braking duties are handled by ventilated discs at the front and solid discs at the rear, equipped with an Anti-lock Braking System (ABS). The electric power steering provides light and precise steering feel. The chassis is tuned to prioritize comfort and stability, rather than sporty handling.
Market Reception & Comparison
The BYD Song Plus DM-i 1.5 has been well-received in the Chinese market, praised for its fuel efficiency, comfortable ride, and advanced technology. Critics have noted its competitive pricing and spacious interior. Compared to other plug-in hybrid SUVs in its class, the Song Plus DM-i offers a compelling combination of features and value. Its fuel economy of 4.95 l/100 km (47.5 US mpg) is particularly noteworthy. Compared to non-hybrid versions of the Song Plus, the DM-i variant offers significantly improved fuel efficiency and reduced emissions.
Legacy
The BYD Song Plus DM-i 1.5 represents a significant step forward in BYD’s commitment to electrification. The DM-i technology has proven to be reliable and efficient, and the LiFePO4 battery pack is known for its safety and longevity. As the used car market matures, these vehicles are expected to hold their value well, particularly due to their fuel efficiency and low running costs. The Song Plus DM-i 1.5 is poised to become a popular choice for environmentally conscious consumers seeking a practical and affordable SUV.
