Chart based on 1508 Ford Mustang and 58 BMW 4-Series repairs.
Chart based on 820 Ford Mustang and 41 BMW 4-Series repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Don't infer Ford Mustang or BMW 4-Series problem frequency from what you see on this page. Many lucky owners have had no repairs, and their cars are not shown.
Ford Mustang and BMW 4-Series Problems and Repair Histories