Higher-end 435i models include a more powerful 6-cylinder engine and 18-inch wheels. The M4 takes after the larger M6 in ride and sophistication, yet it keeps its weight down, to enable a supercar-league 0-60 mph time of just 4. Despite it all, the 4-Series actually works extraordinarily well in profile. At best, the 4-Series manages 27 mpg on the highway in base, 428i guise. The 4-Series has some of the best safety equipment among coupes and convertibles, albeit with a few holes. It's a version of what's offered in the sedan, but the organic sweep of the cockpit works better in the coupe than in the sedan.
There's also a relatively hushed cockpit. We found road feel sorely lacking. Electronics reel you in and keep you stable, but there's a feeling that the car's not filling you in on all that happens at the tires. The automatic transmissions do an excellent job of handling the torque delivery, and their paddle shifters and driving modes fine-tune the driving. Most 4 Series models come with a smooth-shifting 8-speed automatic transmission. The 428i uses a 2. Meanwhile, the stability control gives room for fun but not too much for big error.
A 6-speed manual transmission is a no-cost option on rear-drive coupes, although there is no manual 428i xDrive. The Sport line replaces the Luxury line's chrome with high-gloss black exterior cues, red-stitched leather in the interior, and red highlights in the instrument cluster, among other upgrades. Active cruise control is also offered, and it has the ability to stop the car, and to restart and carry a slow pace with traffic. So we recommend going with some of the warmer trims, as then the coupe's interior gets the sophisticated allure of the bigger 6-Series, with handsome leather and contrasting stitching, some daring colors and some very pretty wood and metal finishes. It has been improved to leave 7.
The 4-Series has taken up residence where the 3-Series Coupes left off. That's fine, actually; it fires up sweetly engineered inline engines, shifts with ease, and bear-hugs the road—while plotting a clear trajectory into M territory with performance upgrades, and with the new M4. Overall, iDrive is a system that's grown many layers, compared to the original, austere version that relied only on a rotary knob—and lots of spinning and clicking. Luxury models get glossy wood trim, while Modern coupes get satin trim, grey or black leather, and inlaid wood trim. It can get to 60 mph in about 5. Yes, it's the same 110.
Options include a park-distance system, plus a surround-view camera system that has a top view and a bird's-eye view of obstacles approaching at low speeds. Final Word The sporty 4 Series is for drivers who need more than the sedate 3 Series sedan can give them. It uses the same engines as the 3 Series, and offers rear-wheel drive or xDrive all-wheel drive. The M Sport line gets a unique M aerodynamic kit, an optional exclusive Estoril blue exterior color, Shadowline exterior accents, an anthracite headliner, sport seats, and an M-themed appearance. Though the Gran Coupe's exterior footprint is the same as 2-door models, this 4-door has better rear-passenger access and over 45 cubic feet of cargo space with rear seats folded.
With either engine, you can get rear-wheel drive or all-wheel drive; and yes, you can even get all-wheel drive on the Convertible. It has a 3-person rear seat, but the humped center position isn't very comfortable. M4 models can bolster their performance potential with carbon-ceramic brakes and driver-selectable Adaptive M Suspension. All this sounds promising, yet we've ended up with two very different impressions of the M4. All this sounds promising, yet we've ended up with two very different impressions of the M4. Keyless entry is now standard on all 435i Convertible models, and an anti-theft alarm system are also now standard on all 4-Series models.
These premium engines require premium gasoline. It makes 300 hp, 300 lb-ft, and zooms to 60 in 5. Despite it all, the 4-Series actually works extraordinarily well in profile. Although it's not the simple performance-focused look you might expect, it's definitely a driver-oriented layout that's walled off from the passenger by those arcs of plastic and wood and metal across the center stack. Yet, you won't find a diesel or hybrid here, as you could in the closely related 3-Series sedans.
Yet the automatic does really well in handling either of these engines and their wide torque spread, and paddle-shifters and a sport mode handle a range of driving styles. Both engines offer consistent train-like torque from idle all the way up to 5000 rpm. Trunk space is almost the size of a mid-size sedan, and storage in the cabin is a brighter spot than ever, with bottle-holders in the door panels plus real cupholders ahead of the joystick-style shifter how did they negotiate that with the engineers? If we had our pick from the lineup, we'd choose the seats you get with the M Sport package, for their adjustability and side support. While the 4-Series Coupe might not make a big statement on the outside, inside is where these models are an aesthetic leap forward from the old 3-Series coupes. The high-performance M4 is predictably the guzzler of the group, but even it manages 24 mpg on the highway. Based on a brief drive, we think the premium Variable Sports steering setup, that changes the rack's ratio, offers a more enthusiastic feel and better weighting overall, once you get used to the ratio changes. And grippy summer tires give its performance all the backing it needs.
With either engine, you can get rear-wheel drive or all-wheel drive; and yes, you can even get all-wheel drive on the Convertible. Prominent ones include the Premium Package that features hands-free trunk opening you use a foot gesture and replaces the SensaTec faux leather upholstery with the real thing, and the Technology Package that includes navigation and dedicated apps. The Luxury package adds upgraded leather in the cabin, a choice of three interior wood trims, unique color combinations, and exterior high-gloss chrome accents. The all-new 2017 Infiniti Q60 also looks to give the 4 Series a run for its money in the departments of style and power. With the manual transmission and either rear- or all-wheel drive, the 435i posts 22 mpg combined. And it's lost a little weight, too, versus the 3-Series coupe it complements. Smooth and road-hugging, but not so aggressive as might be indicated by the stiffer and lighter suspension, using more aluminum parts, and the retuned steering.
Comfort Access Keyless entry is now standard on all 435i Convertible models, and an anti-theft alarm system are also now standard on all 4-Series models. Sport Line trim is now standard across all models, with the sport seats, Anthracite headliner, sport leather steering wheel, and chrono-scaled instrument cluster. The engine lineup isn't all that much different than in the 3-Series. The engine lineup isn't all that much different than in the 3-Series. You have a lot of flexibility in choosing interior trims for the 4-Series. So let's get this out of the way: The 4-Series doesn't have a very useful or comfortable back seat, and it's certainly not enough for most American adults. Ultimately it's a track hound and a car for high-speed sweepers, far more than one for canyon-carving.