2011 BMW 335i Sedan - First Drive Review - Car and Driver

For the 2009 model year, the BMW 3-series sedan and wagon received a minor face lift that included new front and rear lights and a modified trunklid, grille, and front bumper. BMW has made two other, more significant changes to the 3-series lineup for 2011, introducing the sportier 320-hp 335is and adopting a new 3. 0-liter turbocharged engine in all 335i models except the 335is. Called the N55, this inline six-cylinder... ) BMW has said it is holding off on producing higher-output versions of the brand-new N55 because it has confidence in the durability of the N54 to raise the boost for more horsepower. The N55 is notable because it marries direct fuel injection, turbocharging, and Valvetronic variable valve lift for the first time on a BMW inline-six. The exhaust gas pulses from the front and back of the engine are fed separately to the two scrolls of the single turbo, thus minimizing lag because there’s no delay in spooling up. As a result, the new engine delivers its 300 lb-ft of torque at... The car’s 300 hp, delivered at 5800 rpm, also is unchanged from that of the N54. There’s no improvement in the 335i’s performance, with BMW claiming a 0-to-60-mph time for the manual model of 5. 4 seconds and 5. 6 seconds for the automatic. Source: www.caranddriver.com