Many enthusiasts argue that the E46 3 Series represents the pinnacle of BMW’s formula: a perfect blend of sporty character and everyday usability, all wrapped in a timeless design. Indeed, we praise it highly in our E46 review, calling it “one of the most enjoyable drives available in an affordable used car.”
However, the E46 is not without its drawbacks. The interior, for instance, can age poorly, with rubberized plastics on the centre console and door cards prone to scratching and flaking. Additionally, headliners are known to sag, and some models with sub-200 hp can feel underwhelming compared to more modern vehicles.
Luckily, the next generation of the 3 Series, the E90, and its shorter-wheelbase cousin, the BMW 1 Series E88 and E82, addressed many of these issues. Both are excellent cars, but the 1 Series, with its compact, E30-sized footprint and more affordable price point, maybe the last, best way for budget-conscious enthusiasts to experience the purity of BMW’s original engineering magic—something that has unfortunately become diluted in more recent models.
1 Series Overview
Developed in the early 2000s, the first-generation BMW 1 Series shares about 60% of its components with the E90 3 Series. This includes the front and rear suspension, structure, chassis, powertrain, hardware, and electronics. The first-generation BMW 1 Series includes various models such as the E81, E82, E87, and E88, each offering unique characteristics and performance features. And, with an inline six powering the rear wheels (in all US variants), the 1 Series far outshines its primarily four-cylinder, front-drive competitors. Most importantly, these cars feature the E90’s hydraulic steering rack, ensuring they steer like proper BMWs, with Germanic heft and precision that speaks directly to the driver.
While the 1 Series was available in several body styles, including five-door, three-door, coupe, and BMW E88 convertible in the UK, North America only received the coupe (E82) and convertible (E88) versions. So, if you need a more practical four-door or a hatchback, the E90 3 Series might be more suitable. Otherwise, thanks to its shorter wheelbase, the 1 Series’ enhanced agility makes it an enticing choice. The BMW 1 Series stands out in the compact class for its technical innovations, stylish design, and driving dynamics.
Moreover, the 1 Series offered various engine options in the UK, including the popular N47 diesel engine. This 2.0-litre four-cylinder turbocharged diesel was known for its robust performance and excellent fuel efficiency, making it a favourite among UK buyers. Paired with a 6-speed manual gearbox, it offered a driving experience that combined BMW’s renowned driving dynamics with impressive economy.
Model Year Changes
2008–2010
In 2008, the 1 Series debuted in North America in coupe and convertible forms with two engine options: BMW’s N52 and N54 engines. The N52, fitted in the 128i, is historically significant as BMW’s last naturally aspirated straight-six. This engine was a technological marvel, featuring hybrid magnesium/aluminum construction, individual cylinder throttling using normal intake valves without separate throttle bodies, and adaptive electric water and oil pumps for efficient warm-ups in cold weather. The introduction of these models brought a breath of fresh air to the compact car segment, enhancing the car’s appeal and driving dynamics.
If you believe that “more is more” regarding power, the N54-powered 135i might be your choice. With twin turbochargers, this engine increases power by about 70 horsepower over the N52, delivering an official 300 hp and 300 lb-ft of peak torque. However, these numbers are often believed to be underrated, with many dyno tests showing higher outputs.
Both the 128i and 135i were available with a six speed manual or a 6-speed automatic transmission. In the UK, the availability of the N47 diesel engine added another layer of appeal, particularly for those prioritizing fuel efficiency. When paired with the 6-speed manual, the N47 offered a balanced mix of performance and economy, making it a popular choice among UK buyers.
2011–2013
In 2011, the 1 Series received a mid-cycle refresh known as the “Life Cycle Impulse” (LCI) in BMW terms, which brought minor styling updates and significant changes in the powertrain department. The 135i received a new engine: the single-turbo, twin-scroll N55, which maintained the same power ratings as the N54 but with numerous technical improvements aimed at making the N55 more reliable. The updates in 2011 marked a significant step forward in the evolution of new BMWs, showcasing the brand’s commitment to innovation and performance.
For UK buyers, the N47 diesel engine continued to be a highlight, particularly in the 118d and 120d variants. These models were appreciated for their strong torque delivery and excellent fuel economy, all while retaining the 1 Series’ engaging driving dynamics. The 6-speed manual gearbox, a staple in many of these models, ensured that drivers could fully exploit the engine’s potential, whether on winding country roads or the motorway. These updates paved the way for the third generation of the BMW 1 Series, which continues to redefine expectations for compact cars.
In addition to the engine updates, the 135i saw its 6-speed automatic transmission replaced with BMW’s 7-speed dual-clutch transmission (DCT). While this was a notable improvement for performance enthusiasts, UK buyers often preferred the manual gearbox for its direct engagement and control.
What’s the Best 1 Series?
Regardless of which 1 Series model you choose, whether it’s the BMW E82 coupe or the E88 convertible, you’ll be getting the precise hydraulic steering BMW was once known for, along with the balance and handling neutrality of 50/50 chassis weight distribution. In the UK, the choice might come down to whether you prefer the naturally aspirated 128i with its silky smooth straight-six or the powerful turbocharged 135i. Alternatively, the N47-equipped models offer an enticing blend of performance and economy, especially when paired with the 6-speed manual gearbox.
For those who appreciate the thrill of a manual transmission, the 6-speed gearbox in any of these variants delivers a rewarding and engaging driving experience. The 1 Series, particularly in the UK market, remains a hidden gem, offering one of the best driving experiences BMW has ever crafted at a fraction of the cost of newer models.
No matter your preference, the BMW 1 Series (E82/E88) offers a driving experience that is hard to match, making the BMW E88 convertible a top pick for those seeking a blend of performance, practicality, and the classic BMW driving feel.