The fourth generation of the Ford Escort was introduced in 1986. Commonly referred to as the Mk4, the fourth generation Escort was largely an update of the previous Mk3, with many of the engines and mechanical components carrying over. Many of the previous variants were also offered in the Mk4, such as the Popular, L, GL, and Ghia. The sporty variants remained the XR3i and RS Turbo. A variety of engines was offered for the Mk4, with gasoline options being inline four engines ranging from 1.1L to 1.6L, and inline four diesel options of a 1.6L or a 1.7L. Production of the Mk4 Escort lasted until 1990, but many examples, especially the XR3i and RS Turbo were sold well into 1991. The Mk4 was replaced by the Mk5 Ford Escort.