2021 BMW X7 vs 2021 BMW X3

The 2021 BMW X7 was a standout in the luxury SUV market, often seen navigating the bustling streets of metropolitan Los Angeles. It was known for its superior interior quality, surpassing that of the Cadillac Escalade, and offered more prestige than the Infiniti QX80 or Lincoln Navigator. The X7 boasted advanced technological features that outshone the Lexus LX 570 and had a commanding visual presence compared to the Mercedes-Benz GLS-Class. Despite its impressive attributes, the X7's appeal was subjective, as personal preference played a significant role in this segment. The X7 was available in three versions: the xDrive40i, M50i, and the high-end Alpina BX7, with prices starting at $74,900 and reaching up to $141,300. The test vehicle, an X7 xDrive40i, was equipped with premium features and options, resulting in a total cost of $91,745. Its design, characterized by a large grille, was fitting for its size and added to its allure, while the interior shared similarities with the X5, offering high-tech design and quality materials.

The 2021 BMW X3, part of the third generation introduced in 2018, received updates in 2020, including a plug-in hybrid model and M performance variants. The redesign refined the X3's formula, providing a luxury level of refinement that was previously challenging for BMW's smaller SUVs. The X3's exterior resembled a downsized BMW X5, while its interior maintained the brand's signature cold, mechanical styling. Although not as visually appealing as the Mercedes-Benz GLC-Class, the X3's dashboard was more functional. The 2021 X3 was available in several trims, including the sDrive30i, xDrive30i, M40i, and the xDrive30e plug-in hybrid. Standard features included 18-inch alloy wheels, synthetic leather upholstery, and a 10.2-inch infotainment system. Optional features enhanced the luxury experience, with genuine leather upholstery, a panoramic sunroof, and heated seats available. The M40i trim offered additional standard features, such as 19-inch alloy wheels and an M Sport suspension.

The 2021 BMW X7 xDrive40i featured a turbocharged 3.0-liter inline six-cylinder engine, producing 335 horsepower and 331 lb-ft of torque. This engine was paired with an eight-speed sport automatic transmission and BMW's xDrive AWD system. The X7 incorporated eBoost mild-hybrid technology, which included a 48-volt starter/generator and battery, enhancing fuel efficiency and responsiveness. Despite these advancements, the X7's fuel economy ratings were slightly lower than the previous year, with 19 mpg in the city, 24 mpg on the highway, and 21 mpg combined. The X7 accelerated from 0 to 60 mph in 5.8 seconds, offering ample power for various driving scenarios. However, the SUV's handling was affected by its size and weight, with noticeable body motions during dynamic driving. The Dynamic Handling Package improved maneuverability and stability, while the Active Comfort Drive system enhanced ride quality. The X7's performance was smooth and serene, with a focus on comfort and luxury.

The 2021 BMW X3 offered a range of powertrains, starting with the sDrive30i and xDrive30i, both equipped with a turbocharged four-cylinder engine producing 248 horsepower. The xDrive30e plug-in hybrid delivered 288 horsepower and featured a 17-mile electric-only range. The M40i trim boasted a 382-hp twin-turbo inline-six, providing robust acceleration and enhanced cornering abilities. For those seeking even more performance, the X3 M model offered 473 horsepower. The X3's powertrains were paired with an eight-speed automatic transmission, with the sDrive30i featuring RWD and the xDrive30i and xDrive30e offering AWD. The X3's performance was characterized by solid pickup and brisk acceleration, making it suitable for both city driving and highway cruising.

The 2021 BMW X7's interior was luxurious, featuring heated and ventilated front seats, premium Merino leather upholstery, and a five-zone climate control system. Front-seat comfort was exceptional, with standard heated seats, armrests, and steering wheel. The second-row captain's chairs were also comfortable, though access could be challenging due to the long rear doors. The third-row seat was surprisingly accommodating for adults, with power adjustments for easy access. Cargo space was limited with the third-row in use, but folding the seats down provided 48.6 cubic feet of space, expanding to 90.4 cubic feet with the second-row folded.

The 2021 BMW X3 offered impressive interior space, with up to 62.7 cubic feet of cargo space with the rear seats folded. With the seats in use, it provided 28.7 cubic feet of space. A power liftgate was standard, with a hands-free option available. The X3's cabin was spacious for all passengers, with ample headroom and legroom in the front row and adult-friendly rear seats. The interior featured real buttons and dials for easy operation, complementing the main touchscreen.

The 2021 BMW X7 was equipped with Live Cockpit Professional digital instrumentation and an iDrive 7.0 infotainment system, both featuring 12.3-inch displays. The system included Android Auto, Apple CarPlay, enhanced SiriusXM 360L, and Connected Package Pro with real-time traffic and parking information. Wireless smartphone charging, natural voice recognition, and gesture control were also available. The iDrive system was user-friendly, though it could be distracting while driving. A head-up display was included, though visibility was limited with polarized sunglasses.

The 2021 BMW X3 featured a 10.2-inch touchscreen running the iDrive infotainment system, known for its ease of use. The system offered both touch and dial operation, catering to different user preferences. Apple CarPlay was standard, while Android Auto was optional. Additional options included wireless device charging, a digital instrument panel, and a Harman Kardon stereo system. Gesture control was also available, though it could result in false positives for those who gestured frequently.

The 2021 BMW X7 came standard with a comprehensive suite of safety technologies, with additional features available in the Driving Assistance Professional Package and Parking Assistance Package. The Driving Assistance Professional Package included Active Driving Assistant Pro, which offered features like evasive-steering assist and traffic-jam assist. The system was generally effective, though it occasionally struggled with lane maintenance and automated lane changes. The Parking Assistance Package added semi-automated parking assist and a surround-view camera.

The 2021 BMW X3 included standard safety features such as automatic emergency braking, forward collision warning, pedestrian detection, and lane departure warning. It also offered blind-spot monitoring, rear cross-traffic alert, and parking sensors. Optional safety features included adaptive cruise control, automatic high beams, and a head-up display.