Hey dude, glad you asked, I've got a 00 323i that I purchased in Europe in 1999. I currently have 193,400+ original miles 75% highway and have loved every minute of ownership. That being said, the thing I've replaced most is the Control Arms and bushings, I'm on my third set. I've replaced two window regulators, an A/C Compressor, a transmission at 155,000 and a clutch at 150,000. My pulleys went at 160,000 so I replaced all three of them and lastly I replaced a rear wheel bearing. The next thing I must replace in the coming days is the rear differential bushings. Most of the repairs came after 100,000 miles. I've changed my oil including filters every 7,500 miles, replace all four tires every 60,000 miles, rotate tires every 12,000 and get four wheel alignments every 15,000. Finally I never miss a scheduled maintenance appointment. The car has been absolutely amazing. Just my two and a half cents worth. Happy Motoring...