What is the difference between the XC90 B5 and B6?
2 Answers
The differences between the XC90 B5 and B6 lie in their engines, transmissions, and body structures. Different engines: The difference lies in their engines. The B5 model is equipped with a 2.0-liter turbocharged engine, delivering a maximum power of 184 kW, 250 horsepower, and a maximum torque of 350 Nm. The B6 model uses a 2.0-liter twin-charged engine, with a maximum power of 220 kW, 300 horsepower, and a maximum torque of 420 Nm. Different transmissions: The B5 features an 8-speed AT transmission, while the B6 comes with an 8-speed automatic manual transmission. The role of the engine in a car: It serves as the power-generating device for the car, acting as the heart of the vehicle, determining its power, fuel efficiency, stability, and environmental friendliness.
As someone who drives an SUV every day, I've tried both the XC90 B5 and B6 versions, and they feel quite different in daily driving. The B5's power output is around 247 horsepower, which is sufficient for city acceleration and smooth starts at traffic lights, but it can feel a bit sluggish when overtaking on the highway with a full load. The B6, with its upgraded 295 horsepower, offers quicker throttle response, strong acceleration with noticeable push-back force, and effortless climbing on steep slopes. Both come with a mild hybrid system that recovers braking energy to help save fuel. The B5 averages 8.5L/100km in fuel consumption, while the B6 is slightly higher at 9L—not a huge difference. In the long run, the B6 is more expensive, but if you frequently take family trips or drive in mountainous areas, the extra power is worth the cost and reduces concerns about engine overload. The B6 also provides a smoother and quieter ride at high speeds, minimizing noise interference and making long-distance driving much more comfortable.