It would appear my E46 is burning oil very, very fast. Like 1 quart per 250 miles. This may be because I beat the hell out of it, half of my time spent driving it is banging through gears, and driving the car pretty hard. So after about 20 minutes of doing that burnt oil starts to blow through the vents and into the cabin, I have replaced the VCG twice in the past year, so I am 99% sure that isn't the culprit. I have also noticed that after about 15 minutes of idle, the car will start misfiring on multiple cylinders and require me to turn the car off and back on to get it to stop. I know the M54 burns oils, but at this rate it seems like a cause for concern. Is it just because I drive her hard, or is there another underlying issue. Any help is greatly appreciated.