For decades, BMW built its brand on a simple, three-word promise: "The Ultimate Driving Machine." This slogan conjured images of perfectly balanced rear-wheel-drive sedans, high-revving inline-six engines, and a sublime connection between driver and road. Then came the electric revolution—a wave of silent, heavy, and digitally-focused vehicles. The question looming over the Munich-based automaker was pressing: could that iconic driving DNA survive the transition from gasoline to battery?
The BMW i4 is the company's first definitive answer. Unlike the brand's early, quirky EVs like the i3, the i4 is not a radical science project. Instead, it is a calculated, almost conservative, integration of electric power into the heart of its product line. Based on the 4 Series Gran Coupé, the i4 is, in essence, an electric 4 Series. This strategy is both its greatest strength and its most significant compromise, but it results in a vehicle that attempts to be the ultimate electric driving machine for those who aren't quite ready to abandon the familiar.
A Familiar Shape with an Electric Heart
Visually, the BMW i4 is immediately recognizable. It shares the 4 Series Gran Coupé's five-door liftback body, complete with the controversial, oversized kidney grilles. In the i4, these grilles are mostly sealed, housing a "smart" panel of sensors for the driver-assistance systems. While the design is divisive, its form is highly functional. The Gran Coupé body provides a sleek, low-slung profile while offering the practicality of a hatchback, boasting a generous 470 liters of cargo space, which expands significantly with the rear seats folded.
This "shared platform" approach means the i4 doesn't benefit from the flat-floor, cab-forward design of a dedicated "skateboard" EV platform. The interior still has a prominent central tunnel (which is structurally necessary), limiting rear-seat legroom for the middle passenger—a stark contrast to rivals like the Tesla Model 3.
However, the trade-off is an immediate sense of familiarity and quality. Where some EV startups have struggled with build quality, the i4 feels like a product from a company with a century of manufacturing experience. The materials are premium, the fit and finish are exceptional, and the ergonomics are polished.
The Power of Choice: From Efficient Cruiser to "M" Power
BMW has structured the i4 lineup to appeal to two distinct EV buyers: the range-conscious daily driver and the performance enthusiast.
The Mainstream: i4 eDrive40
The eDrive40 (and the entry-level eDrive35) represents the traditional BMW formula. It uses a single electric motor mounted on the rear axle, making it a true rear-wheel-drive sedan. This motor produces a healthy 335 horsepower and 430 Nm of torque, good for a 0-60 mph sprint in about 5.7 seconds. Paired with an 83.9 kWh (usable) battery pack, its primary mission is range. While official EPA estimates are around 280-300 miles, many real-world owners report easily achieving 320 miles or more in temperate conditions, making it an excellent and efficient long-distance cruiser.The Main Event: i4 M50
This is the model that carries the weight of BMW's performance heritage. The i4 M50 was the first-ever electric vehicle to wear the coveted "M" badge. It adds a second electric motor to the front axle, giving it all-wheel drive and a staggering combined output of 537 horsepower and 795 Nm of torque (in "Sport Boost" mode).
The M50 is a genuine performance car. It launches from 0-60 mph in a blistering 3.9 seconds, putting it in direct competition with the brand's own M3 and M4. It is, by all accounts, an "M4 killer" in a straight line. It also receives a host of M-specific upgrades, including adaptive M suspension, M Sport brakes, and a variable sport steering system. It’s the model that proves an EV can deliver the visceral thrill BMW is famous for, albeit with a slightly reduced range of around 270-310 miles.
Inside the Digital Cockpit
The BMW i4's cabin is a brilliant fusion of high technology and classic luxury. The centerpiece is the stunning BMW Curved Display, which integrates a 12.3-inch digital instrument cluster and a 14.9-inch central infotainment touchscreen into a single, sweeping piece of glass. It runs on the brand's sophisticated iDrive 8 operating system, which is fast, feature-rich, and visually impressive.
Crucially, unlike competitors who have moved all controls to a touchscreen, BMW has retained the physical iDrive rotary controller on the center console. This allows drivers to manage navigation, media, and vehicle settings without taking their eyes off the road—a tactile, driver-focused choice that feels premium and safe.
The i4 also adds an emotional layer to the silent EV experience. BMW collaborated with legendary composer Hans Zimmer to create "IconicSounds," a synthetic soundtrack that is pumped through the speakers. It reacts to throttle input, providing a futuristic, sci-fi-esque hum that rises in pitch and intensity, restoring some of the auditory drama lost with the combustion engine.
The Verdict
So, is the BMW i4 the ultimate electric driving machine? It depends on the definition.
If "ultimate" means the most efficient, most spacious, or most technologically revolutionary EV, then perhaps not. The Tesla Model 3 is lighter, nimbler, has more rear-seat room, and benefits from the unrivaled Supercharger network.
But if "ultimate" means being the best driving car, the i4 makes a compelling case. It proves that electric power doesn't have to be an anesthetic. A long-term test by Car and Driver praised the i4 for retaining the core BMW personality: "linear effort buildup in the steering, great lateral body control, [and] the usual fore-aft compliance."
The i4 M50, in particular, delivers the explosive power and handling poise expected of an M car. The i4 eDrive40 offers a refined, comfortable, and luxurious driving experience that feels two steps above its main rivals in terms of ride quality. It's an EV for the traditional car lover—a vehicle that prioritizes the experience of driving over the simple novelty of electrification.
This video review of the i4 M50 explores whether it's a true performance "M" car or an "M4 killer."
