Chart based on 58 BMW 4-Series and 362 Porsche Cayman repairs.
Chart based on 41 BMW 4-Series and 274 Porsche Cayman repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Don't infer BMW 4-Series or Porsche Cayman problem frequency from what you see on this page. Many lucky owners have had no repairs, and their cars are not shown.
BMW 4-Series and Porsche Cayman Problems and Repair Histories