High Quality Content by WIKIPEDIA articles! The term XR, first coined in 1991 on the EB Falcon, is a term used to describe some high performance Ford vehicles in Australia, having copied the term from Ford Europe who used XR2 for the Ford Fiesta, XR3 for the Ford Escort and XR4 for the Ford Sierra from the mid 80s. XR stands for Experimental Research. The first XR's were the XR6, S-XR6 and XR8 (these names were applied to the more performance oriented Ford Falcons) and the XR2 (Ford Capri). The number after the "XR" is used on Falcons to designate the amount of cylinders the cars engine has. Showed following are the cars that the XR name has been applied to.