While the 335d didn't really catch on with the public because of the dismal reputation of diesel engines at the time, the BMW E90 is a solid car, and among the better driving experiences available in the BMW line at the time. This 335d has been tuned a bit, with suspension upgrades and an ECU tune boosting the overall horsepower, torque, and surprisingly, gas mileage. With a few tweaks, this car can make for a great daily driver with the performance of much higher end sedan.