This excerpt from the Petrolicious summary could just as well describe old motorbikes:
Well-engineered from the outset, but often modified during the course of their lives at points when their values were relatively minuscule, these old Bentleys often come to Kingsbury not to have their past erased in a full restoration, but revived. Getley describes the thinking behind the work as, “Restore where you can, replace where you must. Ultimately you want to end up with a car that looks like you haven’t touched it — much more difficult than making a shiny car, believe me."