Here at Coveryourcar.co.uk, we were recently commissioned to product a bespoke, indoor fleece cover for a Classic Mini Cooper, in of all places, Australia. This Classic Mini also had lamp pods fitted so had to be taken into consideration when cutting the pattern.
As with all older classic cars we tend to ask for photographs etc before the process begins so we can see any slight modifications to the car. Wing / door mirrors in particular are always something we take care over with older cars as they were never standard fit item(s). Many mirrors have been fitted later via owners, dealers etc so their position can differ considerably. Measurements and photos normally ensure the pockets in the covers are right, first time.
With indoor Softech bespoke fleece covers, customers can specify their own personal colour combination and piping usually to match or contrast the car being covered.