What is the difference between Volvo B4 and T4?

[Cameron]

Volvo B4 and T4 differ in the following aspects: 1. Equipment and configuration: Depending on the model, the new car will offer a 12.3-inch digital instrument panel, HUD head-up display system, active LED headlights, steering assist lights, 360-degree panoramic imaging, panoramic sunroof, B&W audio system, and in-cabin air quality control system. In terms of safety features, the new car will be equipped with an emergency avoidance assistance system, an upgraded City Safety urban safety system (operating range 4-200 km/h), and a lane departure assistance system, among others. Although the pricing is similar, the configuration naturally surpasses that of BBA. 2. Powertrain: The new XC60 offers three powertrain levels: T4, T5, and T8, corresponding to 2.0T single-turbo low power, 2.0T single-turbo high power, and 2.0T twin-turbo plug-in hybrid, with maximum power outputs of 190 horsepower, 254 horsepower, and 407 horsepower, respectively. The transmission system is matched with an 8AT gearbox. The T4 model is front-wheel drive, while the other models are all-wheel drive. The T5 model accelerates from 0-100 km/h in 6.8 seconds.

[Tyler]

As a seasoned car enthusiast who closely follows automotive technology, the core difference between Volvo's B4 and T4 lies in their powertrains. The T4 features a pure combustion 2.0T engine with around 197 horsepower, delivering direct acceleration response but with slightly jerky start-stop. The B4 adds 48V mild hybrid technology, not only making start-stop incredibly smooth but also enabling brake energy recovery, reducing combined fuel consumption by 1-2 liters per 100km. Currently, the new S60 and XC60 models have switched to the B4, while the older T4 versions may still be available during inventory clearance. When choosing, I lean towards the B4—its electric motor assistance makes low-speed traffic crawling much easier, and the motor provides an additional ~14 horsepower boost, making the drive noticeably more agile.

[OKatherine]

Just test drove these two models, and the driving experience difference is quite noticeable. The T4 has a strong turbo engagement feeling during acceleration, delivering direct push-back but occasionally jerky at low speeds. The B4 starts more quietly and smoothly, especially with the auto start-stop being almost imperceptible at red lights. This 48V system even allows pure electric coasting below 20km/h, making traffic jams much easier on the right foot. In terms of fuel consumption, the B4 saves nearly 1L per 100km compared to the T4, making it more economical for long-term use. I'd recommend choosing the B4 directly if the budget allows, especially for users with more urban commuting.

[Brian]

From a car maintenance perspective, the main difference between B4 and T4 lies in daily operating costs. The T4 is a pure gasoline model with urban fuel consumption around 8-9L/100km; while the B4 benefits from 48V mild hybrid assistance, achieving about 7L/100km under similar driving conditions. With today's expensive 95-octane gasoline, the B4 could save nearly 10,000 yuan in fuel costs over three years. However, the B4 has a slightly higher purchase price - the fuel savings might not offset the price difference for low-mileage drivers. Regarding parts, both share essentially the same engine and transmission, though replacing the B4's mild hybrid motor could cost several thousand yuan. Choose based on your actual driving frequency for optimal practicality.