For half a century the three Sequence has been BMW’s heartbeat—the automobile that pays the hire in Munich and units the model’s dynamic agenda. Greater than 20 million of them have discovered properties for the reason that unique E21 bowed in 1975, making the 3er not simply BMW’s best-seller however the single hottest premium automobile on the planet. In a typical yr the three Sequence household nonetheless delivers about 30 % of all BMW gross sales worldwide, an astonishing share for a single mannequin line in immediately’s fragmented market.
Add the X3—a 3 Sequence in mountain climbing boots—and the image will get even brighter. In 2023 the X3 really edged out the sedan to turn into BMW’s high particular person nameplate, racking up nicely over 350,000 items by itself. Seen collectively, the three Sequence and X3 recurrently account for near half of BMW’s international quantity, underwriting all the pieces from carbon-fiber M automobiles to Neue Klasse EV analysis. In different phrases, if the three Sequence is BMW’s coronary heart, the X3 is its second lung—take away both, and the entire organism struggles to breathe.
The three Sequence has powered BMW—and automobile followers—since its debut on the 1975 Frankfurt present. The primary-gen E21 took the nimble spirit of the 2002, added an out there straight-six, rear-wheel drive, and crisp steering, and immediately redefined what a “driver’s automobile” could possibly be.
By the 1982 E30, BMW had realized how one can give patrons alternative. 4 doorways? Certain. All-wheel drive 325ix? Yep. A manufacturing unit cabrio, a Touring wagon, and naturally the unique M3, whose 2.3-liter 4 helped it seize touring-car titles world wide. The three Sequence was now not one mannequin—it was a full lineup, all nonetheless laser-focused on dealing with and suggestions.
The 1990 E36 moved the sport on once more. A brand new multi-link rear suspension caught the automobile to the highway, whereas VANOS variable timing let the straight-sixes breathe higher and rev more durable. The physique grew up, however drag went down, and the pillar-less Coupé nonetheless turns heads at Vehicles & Espresso.
Chris Bangle’s 1998 E46 balanced fashion and substance. Light-weight aluminum components trimmed fats; DSC stored you pointed the suitable manner. Engine decisions ranged from fuel-sipping diesels to the legendary high-revving S54 within the M3—an engine nonetheless talked about in hushed tones by fanatics.
In 2005 the E90 ushered in “EfficientDynamics.” Magnesium-block sixes, twin-turbo energy, brake-energy regeneration, and stop-start tech all arrived years earlier than rivals caught up. It additionally gave us the primary folding-hardtop Convertible and the V8-powered E92 M3 with its carbon-fiber roof.
The 2012 F30 break up the household: the sedan and wagon stayed 3 Sequence; the Coupé and Convertible grew to become the 4 Sequence. Turbocharging grew to become commonplace, an eight-speed ZF auto appeared, and later a plug-in hybrid proved that electrical help and old-school steadiness can coexist.
In the present day’s G20/G21 (launched 2019, refreshed 2022-24) retains the custom alive. A slick 0.23 drag coefficient, curved dual-screen sprint with iDrive 8.5, and powertrains from mild-hybrid diesels to a 374-hp M340i and a 330e plug-in with as much as 100 km of electrical vary. Stroke-dependent dampers clean the journey, whereas the automobile may even again itself out of a decent spot by replaying its final 50 meters in reverse. Blue-sky tech made enjoyable.
Whereas it misses the guide transmission that every one different 3ers have had, the G20 nonetheless has a few of that very same magic that we noticed within the E21 all these years in the past. It could be larger and heavier, however there’s nonetheless an fanatic high quality to the automobile as we present in our most current overview.
The numbers inform a part of the story: greater than 20 million bought over seven generations. However the magic is in how each 3er—whether or not a humble 316 or a carbon-roof M3 Touring—delivers that very same clear steering really feel, balanced chassis, and grin-inducing power. Fifty years on, the benchmark continues to be the benchmark, proving that progress is nice however progress you possibly can get pleasure from on a winding highway is even higher.
