What are the differences between BMW 3 Series and X3?
4 Answers
BMW 3 Series and X3 differ as follows: 1. BMW 3 Series: Dimensions are 4829/1827/1463mm with a wheelbase of 2961mm. It features a single powertrain combination of B48 engine + ZF8AT, all being 325i/Li models. Whether standard or long wheelbase, they all output a maximum horsepower of 184 hp (5000-6500rpm) and a maximum torque of 300N·m (1350-4000rpm). The standard wheelbase model accelerates from 0-100 km/h in 7.3 seconds, while the long wheelbase model takes 8.1 seconds (8.2 seconds for the long wheelbase four-wheel-drive model). 2. BMW X3: Dimensions are 4648mm*1881mm*1661mm with a wheelbase of 2810mm. It is equipped with a B48 2.0T engine, offering three power outputs depending on the model: 184 hp, 224 hp, and 252 hp. The transmission system is matched with an 8-speed automatic manual transmission, and all models come standard with the xDrive four-wheel-drive system.
I've been driving a BMW 3 Series as my daily commuter and am very accustomed to its sedan design. The low-slung body makes it particularly agile when turning in the city, and it has low fuel consumption, only about 7 liters per 100 kilometers. However, the X3 is an SUV with higher ground clearance and a broader field of vision, making it more suitable for suburban or long-distance trips. There is a significant difference in space between the two: the 3 Series has a smaller trunk that can only fit suitcases, while the X3's trunk can accommodate family shopping or camping gear. In terms of power, the engines in similar configurations have roughly the same horsepower, but the 3 Series offers a stronger sense of control and quicker acceleration response. Maintenance-wise, parts for the 3 Series are cheaper, while those for the X3 are slightly more expensive due to its SUV components. Overall, I recommend the 3 Series for urban dwellers and the X3 for families or those who frequently go on trips.
Having driven the BMW 3 Series for many years, I find it superior in performance with its low chassis and stiff suspension, delivering a strong sense of acceleration push-back and minimal body roll during turns, making it particularly suitable for highways or winding mountain roads. The X3, being an SUV, offers a higher driving position but suffers from unstable center of gravity, with noticeable body sway during cornering. Although equipped with an equally powerful engine, its off-road mode handles rough roads better. The two models differ significantly in size—the 3 Series is compact with a shorter wheelbase, making parking easier, while the X3 has a longer body, more spacious interior, and more comfortable rear seats. Fuel consumption is similar, averaging around 10 liters per 100 km on highways, but the X3 includes additional driver-assist features like hill-start control. In summary, choose the 3 Series for sporty driving, and consider the X3 for versatility.
I often drive the X3 when traveling with my kids. The spacious rear seats have plenty of room for child seats, and the trunk can easily fit a stroller and toys. In comparison, the 3 Series rear seats feel much tighter and appear cramped even with just a few items. The SUV height of the X3 provides better visibility, reducing blind spots, and feels more stable in rainy conditions. The 3 Series has a lower seating position, which saves fuel but makes it prone to scraping the undercarriage. Both cars have the same horsepower and quick acceleration, but the X3's thicker tires offer better bump absorption. For daily use, I find the X3 more practical, especially when traveling with family.
