The 2020 BMW M340i packs a punch with its 382 horsepower engine, getting you from 0 to 60 mph in just 3.8 seconds. The car's turbocharged inline-six hums like a melody while its chassis perfectly harmonizes track performance and everyday comfort. This sports sedan delivers it all—from advanced tech to an exhilarating drive every day. However, the true litmus test will be if it maintains that authentic, classic BMW allure. Let's break down the figures, understand their road manners, and answer the questions that keep this beauty on everyone's mind.
Those in the market for a performance-oriented sports sedan have had the BMW 3 Series as their top pick since 1975. But in 2012, with the release of the sixth-generation model, the F30, BMW seemed to shift gears, favoring comfort over the pure driving thrill that had once defined this car. That's where the 2020 M340i comes in. While it's not a full-on M3, this model was created to sit right between the standard versions and the hardcore M lineup. It was BMW's way of saying, "We remember our roots, and we're here to remind you of them." The M340i wasn't just filling a gap—it was a nod to those who missed the golden days of the 3 Series. It brought back some of the spirit that had made so many fall in love with it in the first place, from car reviewers to driving purists. Car and Driver took the M340i for their rigorous 40,000-mile long-term test, the tenth 3 Series to be put through its paces like this. It may not have been the fastest or most powerful, but it symbolized a comeback. The M340i showed that even in a world where SUVs seem to have taken over, there's still something special about a sports sedan that can make you feel alive behind the wheel.
Under the hood, a 3.0-liter turbocharged inline-six engine cranks out 382 horsepower, sending the car from zero to 60 mph in just 3.8 seconds. That's quick enough to give some older M3 models a run for their money. It can also cover a quarter-mile in 12.3 seconds at 115 mph, which speaks to its raw speed. Even after clocking 40,000 miles, it still hits 0-60 mph in about 4.0 seconds, and the braking remains just as solid. What sets the M340i apart is how well it mixes power with a refined, smooth ride. The ZF eight-speed automatic feels smooth, always keeping up with the engine's power. For more excitement, switch to Sport mode—it sharpens the throttle and extends gear shifts for a livelier drive. And even with all that muscle, it doesn't guzzle gas—it gets around 25 mpg overall, and if you're cruising at 75 mph on the highway, it can stretch to about 33 mpg. The standard sport suspension balances comfort and handling. For more control, the Adaptive M Suspension offers a smoother handling based on your preference.
The 2020 BMW M340i feels pretty spacious inside for a compact sports sedan. Up front, you've got around 42 inches of legroom and almost 39 inches of headroom, which means even taller folks can sit comfortably. In the back, there's about 35 inches for your legs and 38 inches for your head—enough for most adults, though those over six feet might feel slightly squeezed in the legroom department. The seats are sporty and supportive, great for keeping you in place when driving with a bit more spirit, but they're also comfy enough for long trips. Both front seats have power adjustments, including lumbar and thigh support, so finding a comfortable position isn't hard. If you want to make the interior even cozier, there are a few nice add-ons. Heated front seats will cost you an extra $500, and a heated steering wheel is another $190, which can make a big difference on cold mornings. If you're into music, the $875 Harman Kardon sound system is worth considering for its richer, fuller sound. BMW didn't forget about practicality, either. The back seats fold in a 40-20-40 split so that you can carry larger items without hassle. There are also plenty of little storage spots throughout the cabin to keep your stuff organized.
This car perfectly combines that familiar BMW look with a modern, sporty twist, creating a classy, aggressive sedan. Coming in at about 185.7 inches long, 71.9 inches wide, and 56.4 inches tall, the M340i has just the right proportions for a sleek, athletic stance. Those well-known kidney grilles are still there, only bigger and bolder than before. The LED headlights and taillights light up the road better and give the car a more up-to-date, distinct appearance. Standard on this model is 18-inch M wheels in a grey two-tone orbit paired with performance run-flat tires. But if that's not enough, you've got choices — several 19-inch wheel designs and a range of tire options, including grippier, high-performance, non-run-flats. There are a few M-specific touches, like the bigger air intakes and gray details on the grille, mirrors, and rear bumper, giving a nod to its performance potential without being too flashy. It's a look that's sharp but not over-the-top, making it appealing to anyone who likes their car to look as good as it drives.
The 2020 BMW M340i is more than just quick off the line; it's packed with little touches that make every drive feel like an event. The iDrive seven system is the main attraction, featuring a 10.2-inch touchscreen that's simple to navigate. Whether it's maps, music, or tweaking car settings, you've got everything right where you need it, so you're staying focused and pairing up your phone. No problem—it's a smooth process with Apple CarPlay in the mix. If you care about sound, the standard setup gets the job done, but if you're really into your tunes, you can step up to a Harman Kardon system. With 16 speakers, you'll feel every note and beat as if in your private concert hall. Safety-wise, this car has your back with features like warnings if you get too close to the car ahead, automatic braking in tight situations, and reminders if you start drifting out of your lane. Plus, it checks those sneaky blind spots for you. Want more? There's an optional package for things like adaptive cruise control and lane-keeping help, making those long drives or crowded highways less of a headache.
If you're eyeing the 2020 BMW M340i, you're looking at a starting price of around $54,995, but let's be real — add a few extras, and you're creeping closer to $70k. If that seems a bit steep, here's some good news: you can find used models floating around for about the mid-$30k range. It's a smart way to get a piece of that M3 thrill without shelling out the bigger bucks.
The 2020 BMW M340i has much to offer for those who live for the drive. It balances punchy performance and everyday comfort with the right tech touch to keep things interesting. If the idea of a lively sports sedan gets your heart racing, it's hard to look past this one. If you're exploring your options, check out the choices at Exotic Car Trader; we've got a fantastic range of high-performance sedans, including the classic BMW 3 Series. If you're after something exciting to drive and comfortable, we've made it simple to find the perfect car. Check out our carefully vetted selections and see which one feels like it was made for you.
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