What's new for 2021?

The big news for 2021 is the addition of the xDrive45e plug-in hybrid (pictured above), which replaces the xDrive50i in the X5 lineup. The base 40i models also get a touch of electrification with a new 48-volt mild-hybrid system.

Satellite radio and wireless Android Auto now come as standard equipment in the X5, while the options list has been trimmed a bit (the rear-seat entertainment system, off-road package and full Merino leather interior are no more). There are some other options availability differences, but nothing major.

What's the X5's interior and in-car technology like?

The X5's cabin is less austere than has been typical from BMW, boasting a snazzy design with ritzy materials that de-emphasize buttons in favor of large swaths of wood, the huge iDrive display and more interestingly shaped center air vents. And as is typical for this lofty segment of luxury SUVs, you can outfit the X5 in a truly opulent manner with things like a leather-wrapped dash, heated just-about everything (front and rear seats, steering wheel, armrests and cupholders), a 20-speaker Bowers & Wilkins sound system, multiple choices of wood trim, metal weaves, and glass finishings on center console controls. With the latter, you can make the electronic shifter look like a sort of crystal talisman from a fantasy novel.

As for technology, make sure to set aside lots of time during a test drive (and delivery, if you buy one) to learn about the innumerable features and customization settings controlled by the latest version of BMW's iDrive. This isn't a car you just hop in and drive away. Everything from the way the gauges look to your preferred combination of powertrain and chassis settings can be programmed the way you like it. Opting for an X5 M only adds to the customizability of the driving experience. Plus, this latest iDrive can be controlled through a multitude of different means: the center console knob and surrounding capacitive menu "buttons," the touchscreen, natural voice commands akin to Amazon Alexa, or the rather useless gesture control (wave your hands about to accomplish tasks). We found we liked to accomplish different tasks using different means of interface, which speaks to the value in such control redundancy.

How big is the X5?

The X5 is a midsize SUV that seats five people in two rows. That configuration, along with its general exterior dimensions, makes it consistent with a Mercedes-Benz GLE-Class (it has the exact same length), Porsche Cayenne and Audi Q8. The Lexus RX 350 is also within spitting distance of this group, but costs much less. Inside, the specs would indicate that the X5 has less rear seat legroom than these competitors, especially the more passenger-focused Q8, and in person, we found it doesn't exactly provide the sprawl out space you might expect from a high-dollar SUV. The seat back also doesn't recline. Head room in the rear is abundant, however, and shoulder room is typical for the segment, meaning fitting three across shouldn't be an issue.

Now, while rear passenger space is just OK, cargo space is among the best in the two-row segment. It grossly outpaces the Q8 and RX, which are compromised by raked rooflines, as well as BMW's X6 "coupe" sibling. BMW also beats the Cayenne, but is pretty much equal to the Mercedes GLE. It also features a distinctive cargo opening: a power-operated liftgate and tailgate combination. This allows you to access things inside without fear of those things rolling out when you open the tailgate. It also creates a nice, clean place to sit. On the other hand, opening and closing is a two-step process.

What are the X5 fuel economy and performance specs?

For 2021, there are multiple models to choose from that correspond with different powertrains. We’ll start with the basic versions: sDrive40i and xDrive40i models.

The sDrive40i and xDrive40i both have a 3.0-liter turbocharged inline-six that produces 335 horsepower and 331 pound-feet of torque. Like nearly every X5, it has an eight-speed automatic. The sDrive40i is rear-wheel drive, while the xDrive40i is all-wheel drive. BMW estimates that both go from 0-60 mph in a quick 5.3 seconds. The new 48-volt mild hybrid system helps support the gas engine with a little extra power at the low end, provides regenerative braking that stores energy in a second battery, and improves fuel economy. EPA-estimated fuel economy is 21 mpg city, 26 mpg highway and 23 mpg combined for the sDrive40i, which is pretty good given the X5's size and performance. The xDrive40i brings that down to 21/25/23.