German tuner Kellener Sport has announced a number of technical and cosmetic upgrades that transform the new BMW 3-Series from a saloon into a rocket. Starting with the engines, the base diesel unit in the 320d has been tuned to produce 215 hp and 435 Nm (321 lb-ft) of torque, which is more than what you get from the 325d. Meanwhile, the 328i turbocharged petrol engine now makes 290 hp and 420 Nm (310 lb-ft) of torque instead of the stand...[...]Source: autoevolution