I was just wondering about whether anyone has had the chance to directly compare the difference between the two in terms of engine and transmission... I just had the chance to take a drive in a friends A3 which is also '08 but has the TSI engine as opposed to my FSI. I found that his car was by far smoother than mine. Mine the engine is louder and rougher sounding almost like a diesel sometimes. Even when shifting, I have the Forge short throw shifter and 42draft design aluminum bushings on mine vs his stock shifter. I found that his shifts and clutch are almost buttery smooth. My clutch is jerky and harsh by comparison. Not sure if that could be an issue with my car somewhere or whether the updated engine is just that much different. Any input would be welcome.