motiveproducts.com said:Nearly every European made car can use the 1100 and 1109 caps that are included in the 0100 and 0109 kits. These caps are female threaded caps and have an inner diameter at the threads of 45mm. BMW, Porsche, Saab, Volvo, VW (except air cooled) have used this type of cap since the late 1950s. Most other european cars also use this cap with some exceptions. Ferrari on some models and years will use a slightly smaller cap that is 42mm inner diameter. If you have a European made cars with a female threaded cap will more than likely use the 1100 and 1109 caps, but please check the inner diameter of the cap to be sure.