10 Hidden Gems That Showcase BMW’s Legendary N55 Inline-Six

Cameron Eittreim June 15, 2025

BMW’s N55 inline-six engine is nothing short of an automotive legend. Introduced in 2009, this turbocharged powerplant redefined what enthusiasts expected from a modern six-cylinder—delivering a seamless blend of performance, reliability, and cutting-edge technology. While the N55 is often associated with flagship models, there exists a collection of lesser-known BMWs that harness its full potential in surprising ways. This article uncovers ten hidden gems that truly showcase the magic of the N55, each offering a unique twist on BMW’s celebrated engineering.

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1. BMW 335is (E92/E93)

For those in the know, the BMW 335is stands as a true driver’s delight. Offered exclusively in North America, this special E92/E93 model filled the sweet spot between the everyday 335i and the high-strung M3. With an upgraded N55 engine producing 320 hp, an overboost function, and unique styling touches, the 335is delivered thrilling turbocharged performance without sacrificing comfort. Its focus on torque and everyday usability made it a versatile choice for both spirited commutes and weekend track excursions. Read more from Road & Track

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2. BMW X4 xDrive35i (F26)

The BMW X4 xDrive35i (F26) brought the N55’s excitement to the fast-growing luxury crossover segment. This first-generation X4 delivered 300 hp from its turbocharged inline-six, wrapped in an athletic, coupe-inspired SUV body. Its agile chassis and distinctive styling set it apart from competitors, offering a thrilling alternative to the typical crossover experience. The X4 xDrive35i’s blend of performance and utility made it a standout, rivaling even sportier models like the Mercedes-Benz GLC 43 Coupe. See Car and Driver’s review

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3. BMW 640i Gran Coupe (F06)

The BMW 640i Gran Coupe (F06) infused elegance with the N55’s renowned performance. This four-door coupe delivered 315 hp and a level of refinement that set it apart from traditional sedans. Drivers enjoyed a seamless blend of luxury and athleticism, thanks to the N55’s smooth power delivery and the Gran Coupe’s graceful design. For those seeking understated sophistication, the 640i offered a compelling alternative to the V8-powered 650i, focusing on balance and versatility rather than brute force. Reviewed by Motor Trend

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4. BMW M235i (F22)

The BMW M235i (F22) captured enthusiasts’ hearts by blending the N55’s 320 hp punch with a nimble, rear-wheel-drive platform. Its crisp steering and responsive chassis recalled the golden era of BMW coupes, drawing frequent comparisons to the beloved E46 M3. Yet, the M235i offered modern efficiency and everyday comfort—making it a versatile option for drivers who crave excitement without compromise. This model’s blend of classic BMW dynamics and contemporary practicality made it an instant favorite. Check out Jalopnik’s take

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5. BMW 535i Gran Turismo (F07)

The BMW 535i Gran Turismo (F07) carved its own niche with a unique blend of practicality and luxury. This five-door hatchback featured the N55’s turbocharged power, delivering a spirited drive alongside an impressively spacious and comfortable cabin. For those who wanted more versatility than a sedan and more refinement than a typical SUV, the 535i GT was a standout choice. Its distinctive design and adaptable interior set it apart from the standard 5 Series and competitors like the Audi A7. Detailed by Edmunds

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6. BMW X3 xDrive35i (F25)

The BMW X3 xDrive35i (F25) brought the N55’s spirited performance to the compact luxury SUV market. With 300 hp under the hood, this second-generation X3 combined family-friendly versatility with a genuinely sporty drive—outshining rivals like the Lexus NX. Its responsive handling and smooth turbocharged delivery made daily errands just as engaging as weekend getaways. The X3 xDrive35i proved that practical SUVs could still offer the dynamic essence BMW is known for. See Autotrader’s review

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7. BMW 740i (F01/F02)

The BMW 740i (F01/F02) brought the N55’s sophistication to the forefront of the luxury sedan world. While often overlooked in favor of its V8 and V12 siblings, the inline-six in the 740i offered a compelling blend of performance, efficiency, and lower maintenance costs. Its refined power delivery, coupled with advanced in-cabin technology, made it especially appealing to those who valued comfort and understated elegance over sheer power. For many, the 740i represented the sweet spot of the 7 Series lineup. Reviewed by Car and Driver

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8. BMW X5 xDrive35i (F15)

The BMW X5 xDrive35i (F15) delivered the N55’s lively spirit in a versatile, family-friendly package. With 300 hp and standard all-wheel drive available, this generation of X5 struck an ideal balance between performance and everyday usability. It offered a more efficient and agile alternative to V8-powered rivals, all while maintaining the luxurious feel expected of a BMW SUV. For families who refused to compromise on driving excitement, the X5 xDrive35i was a standout in its segment. More at Motor Authority

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9. BMW 435i Gran Coupe (F36)

The BMW 435i Gran Coupe (F36) masterfully combined the N55’s 300 hp performance with the sleek lines of a four-door coupe. Its stylish design was matched by real-world practicality, thanks to a spacious hatchback trunk that enhanced daily versatility. Competing directly with the Audi A5 Sportback, the 435i Gran Coupe delivered both engaging dynamics and family-friendly utility. This model proved that you don’t have to sacrifice excitement for everyday usability. Read BMW Blog’s review

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10. BMW Z4 sDrive35i (E89)

The BMW Z4 sDrive35i (E89) delivered the N55’s turbocharged power to one of BMW’s most stylish convertibles. With 300 hp, razor-sharp handling, and the joy of open-air motoring, it stood out as a true driver’s roadster—balancing comfort, advanced technology, and classic rear-wheel-drive dynamics. Against rivals like the Porsche Boxster, the Z4 offered a unique blend of daily usability and thrilling performance.

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