The BYD Song Plus DM-i 1.5 12.9 kWh (218 Hp) is a plug-in hybrid SUV produced by the Chinese automaker BYD. Introduced with the facelifted Song Plus range in July 2024, this variant represents a significant step in BYD’s strategy to offer efficient and technologically advanced vehicles. Positioned as a mid-range offering within the Song Plus lineup, it balances performance, fuel economy, and electric range, catering to consumers seeking a practical and environmentally conscious SUV. The “DM-i” designation signifies BYD’s Dual Mode-i technology, emphasizing the vehicle’s ability to operate in both fully electric and hybrid modes. This model is primarily targeted at the Chinese domestic market, where demand for plug-in hybrids is rapidly growing, but export plans are underway as BYD expands its global presence.
Technical Specifications
| Brand | BYD |
| Model | Song |
| Generation | Song Plus (facelift 2023) |
| Type (Engine) | DM-i 1.5 12.9 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) | 4.93 l/100 km (47.7 US mpg, 57.3 UK mpg, 20.3 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 | 12.9 kWh |
| Battery technology | Lithium iron phosphate (LiFePO4) |
| Battery location | Below the floor |
| All-electric range (CLTC) | 75 km (46.6 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 BYD Song Plus DM-i 1.5 utilizes a plug-in hybrid powertrain centered around a 1.5-liter naturally aspirated four-cylinder engine (code-named Xiaoyun) paired with an electric motor. The engine produces 101 horsepower and 92.93 lb.-ft. of torque. The electric motor contributes 218 horsepower and 191.77 lb.-ft. of torque, resulting in a combined system output of 218 horsepower and 191.77 lb.-ft. of torque. The engine employs multi-port fuel injection and a double overhead camshaft (DOHC) valvetrain with variable valve timing (VVT) to optimize efficiency. The “DM-i” system prioritizes electric drive whenever possible, switching to hybrid mode for higher speeds or when the battery is depleted. The E-CVT (electronically controlled continuously variable transmission) seamlessly integrates the power from both the engine and motor, providing smooth acceleration. The 12.9 kWh lithium iron phosphate (LiFePO4) battery pack is located under the floor, contributing to a lower center of gravity and improved handling.
Driving Characteristics
The Song Plus DM-i 1.5 offers a refined driving experience. In pure electric mode, the vehicle provides near-silent operation and brisk acceleration, particularly in urban environments. The 0-60 mph time of 7.3 seconds is respectable for a compact SUV. The E-CVT transmission ensures smooth and seamless gear changes, eliminating the jerkiness often associated with traditional automatic transmissions. When the engine engages, the transition is generally smooth and unobtrusive. Compared to the standard gasoline-powered Song Plus models, the DM-i variant offers significantly improved fuel economy and reduced emissions. While the 1.5-liter engine isn’t particularly powerful on its own, the electric motor provides ample torque, resulting in responsive performance. The front-wheel-drive configuration provides adequate traction for most driving conditions, but may exhibit some torque steer under hard acceleration.
Equipment & Trim Levels
The Song Plus DM-i 1.5 typically comes well-equipped, even in its base trim. Standard features generally include LED headlights, a large touchscreen infotainment system with smartphone integration (Apple CarPlay and Android Auto), a digital instrument cluster, automatic climate control, and a suite of advanced driver-assistance systems (ADAS) such as adaptive cruise control, lane departure warning, and automatic emergency braking. Interior upholstery is typically cloth or synthetic leather, with higher trims offering genuine leather options. Optional extras may include a panoramic sunroof, heated and ventilated front seats, a premium sound system, and a 360-degree camera system. The dashboard layout is modern and minimalist, with a focus on user-friendliness.
Chassis & Braking
The Song Plus DM-i 1.5 features a McPherson strut independent suspension at the front and a multi-link independent suspension at the rear, providing a comfortable and controlled ride. The suspension is tuned to balance ride comfort with handling agility. The vehicle is equipped with ventilated disc brakes at the front and solid disc brakes at the rear. ABS (Anti-lock Braking System) is standard, along with electronic brake-force distribution (EBD) and brake assist. The electric power steering provides light and precise steering feel. The vehicle rides on 19-inch alloy wheels with 235/50 R19 tires, offering a good balance of grip and ride comfort.
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 4.93 l/100 km (47.7 US mpg) is significantly better than that of comparable gasoline-powered SUVs. Reliability reports are still emerging, but BYD has a growing reputation for building durable and dependable vehicles. Compared to higher-trim Song Plus models with larger engines, the DM-i variant prioritizes efficiency over outright performance.
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 popular with consumers, and the Song Plus DM-i is expected to become a key model in BYD’s lineup. The long-term reliability of the powertrain remains to be seen, but BYD’s use of lithium iron phosphate (LiFePO4) batteries is generally considered to be a positive factor, as these batteries are known for their stability and longevity. As BYD expands its global presence, the Song Plus DM-i is likely to become a more common sight on roads around the world, offering a compelling alternative to traditional gasoline-powered SUVs.




