Our VerdictThe Edmunds Vehicle Testing Team evaluates a fresh batch of vehicles every week, pairing objective assessments at our test track with real-world driving on city streets, freeways and winding roads. The data we gather results in our Expert Ratings. They’re based on 30-plus scores that cover every aspect of the automotive experience.
The BMW M3 is a sport sedan that comes so close to being perfect. The all-wheel-drive system gives you confidence in poor weather, plus heaps of grip for explosive acceleration. You can even divert all power to the rear wheels for some tail-happy antics if you wish. Yet the highs are so high that the car's numb steering and unpleasant exhaust note really stick out.
Rated for you by America's best test team.How does the M3 drive? We tested the BMW M3 Competition xDrive. It's ferociously fast. The 0-60 mph sprint took just 3.2 seconds in our testing, handily beating the Cadillac CT4-V Blackwing and Audi RS 5 Sportback. However, the transmission can be reluctant to downshift, even in Sport mode. So if you're about to tackle a set of serpentine mountain roads, we suggest you keep the transmission in its manual shift mode.
Handling is superb. The M3 Competition is a true sport sedan, with lots of grip and very little roll in corners. All-wheel drive is newly available for this M3 generation. Not only does it cut down acceleration times, but it also improves traction when it starts to snow outside. You can disable the all-wheel-drive system and send all of its power to the rear wheels for tail-out antics, if that's still your thing.
Unfortunately, BMW's modern steering calibration continues to be fine but not great. The car reacts quickly to driver inputs, but in Comfort mode, the steering doesn't increase in effort as you move away from dead center. This lack of effort buildup makes it difficult to intuitively know where the wheels are pointed, which is especially evident in back-to-back cornering. Switching to Sport mode for its heftier weight is needed for spirited driving.
How comfortable is the M3? You aren't getting the plush, pillowy ride that you'd find in a similarly priced 7 Series, but the M3 Competition is surprisingly comfortable given its capabilities. In Comfort mode, the adaptive dampers help prevent the sport-tuned suspension and narrow tire sidewalls from making the M3's ride too harsh. Even though the optional carbon-fiber bucket seats, which is what our test car had, don't have many adjustments, it's pretty easy to dial in a setup that you find comfortable. However, the carbon-fiber insert in the middle of the seat might also force some drivers to splay their legs while behind the wheel.
Wind and road noise is acceptable for this kind of sport sedan, but our editors are mixed on the engine's exhaust note. Some think it sounds like a symphony of strained blenders at full whack, while others think it absolutely rips, especially from the outside.
How’s the interior? There are small touches everywhere — from the center stack and touchscreen, both canted toward the driver, to the excellent seat positioning — to let you know that BMW thinks of the driver as the most important person in the M3's cabin. We didn't find many usability problems, though the charging pad is located just ahead of the cupholders, so if you're bringing a pair of venti cups home, you can't reach your phone.
Interior space is pretty good for a compact sedan, and there's a touch more legroom than in competitors. The M3 has thick windshield pillars, which slightly hamper forward visibility, but that's not uncommon for the segment.
Our test M3 came with one option that we advise against unless you plan to treat the M3 Competition as a real track car: the carbon-fiber sport bucket seats. They have comfortable padding, but actually entering and exiting the vehicle is difficult due to their high-profile thigh bolsters.
How’s the tech? The M3 features the latest in-car tech BMW has to offer. The standard navigation system is one of the better systems on the market, though its constant traffic updates get annoying. If you prefer to run things from your phone, the M3 offers Apple CarPlay (with wireless connectivity) and Android Auto integration. You can also use a decent list of voice commands to do things like change the radio or input an address into the navigation system. Sound quality from the Harman Kardon audio system is impressive.
The M3 comes with a mix of standard and optional driver aids, including adaptive cruise control, blind-spot warning and parking sensors. Overall, BMW does a nice job of tuning these features to be helpful without being overly sensitive.
How’s the storage? In addition to the rear seat, a useful cargo area is why you buy an M3 over, say, a Shelby GT500 or Chevrolet Corvette. This BMW sport sedan offers 13.0 cubic feet of space, which is a bit larger than the CT4-V Blackwing's 10.7-cubic-foot trunk. However, the Audi RS 5 Sportback is a hatch, and it offers roughly 50% more cargo room than the M3. In the cabin, there are plenty of places to store items, from the sizable underarm storage bin to generous door pockets.
If you're carrying little ones, know that the M3's Isofix anchors are easy to access below flip-up lids, and there's enough room in the back to fit a rear-facing car seat.
How’s the fuel economy? The M3 Competition xDrive is EPA-estimated to achieve fuel economy of 18 mpg combined (16 city/22 highway). This is slightly below EPA estimates for the CT4-V Blackwing and Audi RS 5. However, our test car got an impressive 23.7 mpg on our 115-mile evaluation route. Results for the CT4-V Blackwing and Audi RS 5 were 20.4 mpg and 22.7 mpg, respectively.
Is the M3 a good value? While the M3 itself starts just north of $70,000, our Competition xDrive test vehicle with matte gray paint and every performance box ticked rocketed the price tag above six figures. That's not a surprise for the luxury sport sedan category — a loaded Audi RS 5 Sportback will cost about the same — but the Cadillac CT4-V costs tens of thousands of dollars less. That said, the Caddy is slower and not quite as nice inside. Even though the M3 costs a lot of money, few four-doors can do what this BMW can do.
From a warranty perspective, BMW's four-year/50,000-mile bumper-to-bumper and powertrain coverage is typical for the segment. The three years of complimentary maintenance will carry you through to the end of your lease.
Styling is subjective, so we aren't going to significantly ding the M3's bucktoothed grille. The rest of this sport sedan looks pretty sharp, with flared wheel arches and a quad exhaust to visually distinguish it from the hoi polloi 3 Series. The interior is a bit spiffier too.
Then there's the M3 Comp's credentials — with more than 500 horsepower on tap, this thing rockets off the line and offers awesome grip in corners. Because the xDrive system allows you to shunt all power to the rear tires, opting for AWD doesn't necessarily mean totally handing the reins to microchips and processors.
However, the numb steering kept us from fully engaging with the M3 Comp. The exhaust note was a bummer for some of us too. It's extremely capable, just not completely "oh-my-gosh-go-out-and-buy-one-now." And skip the carbon bucket seats. Your hips, thighs and significant other will all thank you.