The 1-Series is offered in two different two-door body styles: a coupe or soft-top-equipped convertible. Both of these body styles can be specified in 128i or 135i form. The 128i comes with a 230-horsepower, 3.0L in-line 6-cylinder engine, while the 135i models get a 300-hp, 3.0L turbocharged six.
Both of these rear-wheel drive models come with a standard 6-speed manual transmission that, in BMW tradition, provides great car control as well as a satisfying, tactile experience. A 7-speed dual-clutch (DCT) gearbox is available on the 135i that enables very quick automated shifts as well as improved acceleration. With the DCT, the 135i can now get to 60 mph in just 5.0 seconds and brings a fuel economy rating of 18 mpg city, 25 highway--the same as the standard manual transmission.
The turbocharged, direct-injected engine in the 135i features a single twin-scroll turbo that features excellent low-rev response and enables its peak torque rating of 300 lb-ft at as low as 1,200 rpm.
The 1-Series has a responsive but not overly firm ride, with a double-pivot spring and strut front suspension and rear control arms. A variable-ratio Active Steering system, which varies both the ratio and level of assist for quicker response, is optional on the 135i.
In Convertible models, the top can be raised and lowered even when moving slowly (up to 25 mph), and can go from up to fully down in just 22 seconds, and the arrangement doesn't inhibit trunk space as some retractable hard-top systems do. In either model, there's also an opening with expandable bag that allows long items like a snowboard or golf bag to fit through. The silhouette of the 1-Series convertible is much like that of the coupe when it's up. A slightly different trunklid design in convertibles helps accent the design and improve visibility. Convertible models also include a special climate-control mode that reacts to the level of sunlight, and optional Boston leather has a sun-reflective treatment that helps reduce temperatures on hot days. An available wind deflector helps bring a quieter, less turbulent interior at highway speeds. Whether in the coupe or convertible, there's plenty of space to sprawl in the front seats, though the back seat is quite tight.
The BMW's Dynamic Stability Control is designed to allow a little more dynamic flexibility when driving the 1-Series quickly; the higher threshold helps not only in track driving but also in snow. A special rear-brake management mode helps simulate a rear differential and get a stronger grip either out of a fast corner or in slippery conditions.
A much more aggressive look can be achieved with the M Sport Package. It brings aero upgrades, flashier wheels, sport seats, special M-branded trim pieces, and an exclusive LeMans Blue Metallic paint color, plus functional improvements that include a higher top speed, better brake cooling, a sports suspension and performance tires. With the 135i, brakes are upgraded to a strong 6-piston setup in front.
Entertainment options include a harman/kardon surround-sound system, HD radio, Sirius Satellite Radio, USB/iPod controls, while a Bluetooth hands-free interface is available. Meanwhile, a heated steering wheel is available on both models as part of a Cold Weather Package, and heated seats are available. A hard-drive-based navigation system with real-time traffic info is also available.
Adaptive xenon headlamps, which help improve vision in dark corners, are standard on the 135i and optional on the 128i. Also, LED Adaptive Brake Lights grow brighter depending on the brake force. That's in addition to plenty of standard safety equipment, including stability control, side airbags, and brake-drying and brake stand-by functions.
Performance
Responsive DCT Gearbox
Excellent Steering And Handling
Affordability
Convertible's Well-designed Soft-top
BMW's compact 1-Series Coupe and Convertible models carry into 2012 with minor changes. Most notably, the front end design has been rethought, with new fog light housings and the application of BMW's Air Curtain feature, which uses special front-end ducting to help improve front-end aerodynamics. Introduced first on the 1-Series M coupe, it's now standard on the 128i.
The 135i Coupe and Convertible might be among the more affordable BMW models, but they offer one of BMW's best gearboxes--the available 7-speed dual-clutch DCT. The 1-Series' unencumbered driving feel will certainly be appealing to those who enjoy a curvy road. Like much of BMW's lineup, the 1-Series is among the best-handling vehicles in its class. The 128i coupe's starting base price is a low (for a BMW) $29,450.
