The Volvo XC90 II 2.0 T8 Twin Engine, produced from 2015 to 2017, represents a significant step in Volvo’s commitment to electrification and premium SUV design. This plug-in hybrid variant was positioned as the flagship model within the second-generation XC90 lineup (internally designated as the XC90 II), offering a blend of performance, efficiency, and luxury. Built on the Scalable Product Architecture (SPA) platform, the XC90 II aimed to redefine the seven-seat SUV segment, and the T8 Twin Engine version was its most technologically advanced offering. It combined a gasoline-powered internal combustion engine with an electric motor, providing all-wheel drive capability and the ability to operate in pure electric mode for shorter distances.
Powertrain & Engine Architecture
At the heart of the XC90 T8 Twin Engine lies the Volvo B4204T35 2.0-liter inline-four cylinder gasoline engine. This engine utilizes both turbocharging and supercharging – a relatively uncommon configuration – to deliver a broad torque curve and minimize turbo lag. The supercharger provides immediate boost at lower engine speeds, while the turbocharger takes over at higher RPMs for sustained power. Direct fuel injection is employed for precise fuel delivery and improved combustion efficiency. The engine produces 320 horsepower at 5700 rpm and 400 Nm (295.02 lb-ft) of torque between 2200 and 5400 rpm.
Complementing the gasoline engine is an 87 hp electric motor, powered by a 9.2 kWh (gross) / 6.7 kWh (net/usable) lithium-ion battery pack. This battery is strategically located in the central tunnel of the vehicle, minimizing impact on passenger space. The electric motor drives the rear wheels, effectively creating an all-wheel-drive system. The 8-speed automatic transmission (Geartronic) is paired with the internal combustion engine, managing power delivery to the front wheels. The drivetrain architecture allows for three primary operating modes: pure electric, hybrid (combining both engines), and internal combustion engine only. The electric motor generates 240 Nm (177.01 lb-ft) of torque available from 1-3000 rpm.
Fuel Injection and Valvetrain
The B4204T35 engine employs a sophisticated direct injection system, injecting fuel directly into the combustion chamber for improved efficiency and reduced emissions. The engine also features a Double Overhead Camshaft (DOHC) valvetrain with four valves per cylinder, optimizing airflow and enhancing performance. The compression ratio is set at 10.3:1, a balance between efficiency and power output.
Driving Characteristics
The XC90 T8 Twin Engine delivers a unique driving experience. In pure electric mode, it offers near-silent operation and a range of up to 43 km (26.72 miles) based on the New European Driving Cycle (NEDC). Acceleration in electric mode is brisk, but the combined output of both engines results in a 0-100 km/h (0-62 mph) time of 5.6 seconds, and a 0-60 mph time of 5.3 seconds. The supercharger and turbocharger combination provides strong acceleration across the rev range, making overtaking maneuvers effortless. The automatic transmission shifts smoothly and efficiently, contributing to a refined driving experience.
Compared to the standard gasoline-powered XC90 variants, the T8 Twin Engine offers significantly improved fuel economy and lower emissions. However, the added weight of the battery pack and electric motor (approximately 249.12 lbs) does slightly impact handling agility compared to lighter models. The all-wheel-drive system provides excellent traction in various weather conditions, enhancing stability and control.
Equipment & Trim Levels
The XC90 T8 Twin Engine was typically offered in higher trim levels, reflecting its premium positioning. Standard features included leather upholstery, a panoramic sunroof, a premium sound system, and a comprehensive suite of safety technologies, including Volvo’s City Safety system. The interior featured a minimalist Scandinavian design, with a large touchscreen display controlling most vehicle functions. Optional extras included advanced driver-assistance systems such as Pilot Assist (semi-autonomous driving), upgraded audio systems, and various interior customization options.
The dashboard configuration was characterized by a clean and uncluttered layout, with a focus on intuitive controls and a high-quality finish. The seats were designed for comfort and support, providing a relaxing experience for both driver and passengers. The seven-seat configuration offered ample space for families, with easy access to the third row.
Chassis & Braking
The XC90 II utilizes a double wishbone front suspension and a transverse stabilizer bar, providing a comfortable ride and responsive handling. The rear suspension features a transverse stabilizer and leaf springs. Ventilated disc brakes are fitted on all four wheels, providing ample stopping power. The XC90 T8 Twin Engine benefits from the added weight distribution provided by the battery pack, which contributes to improved stability during braking and cornering. ABS (Anti-lock Braking System) is standard, enhancing safety in emergency braking situations. The electric power steering provides precise and responsive steering feel.
Market Reception & Comparison
The Volvo XC90 T8 Twin Engine was generally well-received by automotive critics. It was praised for its innovative powertrain, luxurious interior, and strong performance. Fuel economy was a major selling point, with the plug-in hybrid system allowing for significant savings on fuel costs. However, some critics noted the relatively high price tag compared to conventional SUVs. Compared to other XC90 trims, the T8 Twin Engine offered a more refined and technologically advanced driving experience, but at a premium cost.
In terms of reliability, the XC90 T8 Twin Engine has proven to be generally reliable, although some owners have reported issues with the battery pack and electric motor. Regular maintenance is crucial to ensure the longevity of the hybrid system. The T8’s fuel economy (2.1 l/100 km combined) and low CO2 emissions (49 g/km) were significantly better than those of the gasoline-only XC90 models.
Technical Specifications
| Brand | Volvo |
| Model | XC90 |
| Generation | XC90 II |
| Type | 2.0 T8 Twin Engine (320 Hp) Plug-in Hybrid AWD Geartronic |
| Start of production | 2015 |
| End of production | 2017 |
| Powertrain Architecture | PHEV (Plug-in Hybrid Electric Vehicle) |
| Body type | SUV |
| Seats | 7 |
| Doors | 5 |
| Fuel consumption (combined) | 2.1 l/100 km |
| CO2 emissions | 49 g/km |
| Fuel Type | Petrol / electricity |
| Acceleration 0 – 100 km/h | 5.6 sec |
| Acceleration 0 – 62 mph | 5.6 sec |
| Acceleration 0 – 60 mph | 5.3 sec |
| Maximum speed | 230 km/h (142.92 mph) |
| Gross battery capacity | 9.2 kWh |
| Net battery capacity | 6.7 kWh |
| Battery voltage | 400 V |
| Battery technology | Lithium-ion (Li-Ion) |
| Battery weight | 113 kg (249.12 lbs) |
| All-electric range | 43 km (26.72 mi) |
| Average Energy consumption | 18.2 kWh/100 km |
| Electric motor power | 87 Hp @ 7000 rpm |
| Electric motor Torque | 240 Nm @ 1-3000 rpm (177.01 lb.-ft.) |
| Engine Power | 320 Hp @ 5700 rpm |
| Engine Torque | 400 Nm @ 2200-5400 rpm (295.02 lb.-ft.) |
| Engine displacement | 1969 cm3 (120.16 cu. in.) |
| Kerb Weight | 2249 kg (4958.2 lbs) |
| Fuel tank capacity | 50 l (13.21 US gal | 11 UK gal) |
Legacy
The Volvo XC90 T8 Twin Engine played a pivotal role in establishing Volvo as a leader in plug-in hybrid technology. It demonstrated the potential for combining gasoline power with electric drive to deliver both performance and efficiency. While early models may now be showing their age, the XC90 T8 remains a desirable used car option for those seeking a luxurious and environmentally conscious SUV. The powertrain, while complex, has proven to be reasonably durable with proper maintenance. The XC90 T8 Twin Engine paved the way for Volvo’s fully electric models and solidified the brand’s commitment to a sustainable future.
