Yes if you buy a used car know the history and look at receipts or you may be in for some fixes.
If you buy your car from a non enthusiast you're looking for trouble at 150K plus miles. If you buy from an enthusiast you likely won't need nearly as much. Enthusiast keep records and receipts. I gave the next owner of my baby a folder of receipts as well as the original window sticker.
OE CSL WHEELS - OE CSL BRAKES - OE AUTOFOLD MIRRORS - CSL TRUNK - CSL DIFFUSER - AA SPORT TUNE - AA PULLEYS - BILSTEIN PSS9s - AS 40% SSK
CF CSL RACE LIP - NAVI - BMW PERF CF STRUT BAR - BMW GROUP N MNTS - GRUPPE M CF INTAKE - UUC SS BRAKELINES, TRANS MNTS, RTABs - 4.10 BMW M-SPORT DIFF