New & Used BMW X4: In Depth
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The BMW X4 is the latest coupe-like crossover to join the German automaker's lineup and is a spin-off of the X3 sport-utility, just as the X6 was created from the X5.
The X4 currently is in a style class of its own. Soon however, after an upcoming update, the Mercedes GLK will become the GLC and a "coupe" version will challenge the X4's sporty looks. Until then, the X4 goes head to head with the on-road-only Porsche Macan.
The new X4 shares the mid-size X3's mechanicals but wraps them in a sleeker shape, one with a sporty stance and a lower roofline—and less cargo room in back. It also has a slightly sportier tune than its conventionally shaped sibling.
For more information, including pricing, specs, and photos, see our 2015 BMW X4 page.
Why choose the X4 out of all of BMW's hatchbacks, wagons, coupes, and SUVs? BMW argues it's for the design. It doesn't have much different a footprint from the X3--it's 1.3 inches wider, 1.5 inches lower, and exactly the same length--but the proportions are very different, as are many of the details.
The X4's low, arched roof earns it its claim to coupe-likeness, while strong, dynamic character lines along the side add further hints of athleticism not normally seen on crossovers. At the nose of the X4, you'll find a very familiar version of BMW styling, with SUV cues, including a set of wide, deep air inlets, an apparent skidplate (or skidplate-mimicking design), and, of course, the signature kidney grilles. The headlights of the X4—twin round units—are quite dramatic, and complemented by LED fog lamps. Toward the rear, the X4 has the ‘signature swage line’ alongside—split in two here, for a more dynamic look—while in back the X4 is probably at its most conventional, with a treatment that looks quite carlike, only lifted upward.
BMW offers two powertrains in the X4, with both coming standard with xDrive all-wheel drive. The xDrive28i is powered by a turbocharged 240-hp, 2.0-liter four-cylinder, while the xDrive35i model uses a turbocharged 300-hp, 3.0-liter in-line six-cylinder engine. All X4s get an excellent eight-speed automatic transmission that provides smooth and quick shifts just like it does in many other BMW models.
Since underpinnings are largely carried over from the X3, much of that model's driving experience extends here—meaning that the X3 rides tall like a crossover, but launches with every bit of the authority of a sport sedan, and without the squat and nosedive that are pretty typical in bigger vehicles. The variable sport steering system is standard here, as are steering-wheel paddle shifters. Suspension and steering are both tuned slightly more sporty than in a comparable X3. And while the X4 really doesn’t look that trail-focused, it at least has an advanced enough all-wheel-drive system to handle most situations, although tires and ground clearance are limiting factors.
The X4 offers comfortable seating for four adults, with the area between the two well-bolstered outboard positions acting as an occasional spot for a child or adult on a short trip. Cargo space in the X4 ranges from 17.7 cubic feet with the rear seats up to 49.4 in full-on cargo mode. All X4s include a power hatch mechanism, while choosing Comfort Access also brings the Smart Opener feature, which provides hands-free opening by waving a foot below the rear bumper.
Features and equipment follow the mold of BMW's existing X vehicles, including a wide array of exterior and interior color options and upholstery styles; advanced electronics and entertainment gear; and high-tech safety features. Like other modern BMWs, the X4's infotainment functions are manipulated through the brand's latest iDrive controller; it incorporates a touchpad, allowing users to trace out individual characters when choosing a nav destination or selecting names from a phonebook. Rear Park Distance Control is a standard feature as well, made somewhat necessary by the short rear window. An available M Aerodynamics Package will bring a collection of sporty BMW M finishing touches to the look, both on the outside and in the cabin.