Wrightbus is a Northern Irish bus manufacturer and a pioneer of the low-floor bus. The company was established in 1946 by Robert Wright and was later run by his son William Wright, until it was acquired in 2019 by British businessman Jo Bamford.

The Dennis Dart is a rear-engined single-decker midibus chassis that was introduced by Dennis of Guildford, England in 1989, replacing the Dennis Domino. Initially built as a high-floor design, in 1996 the low-floor second generation Dennis Dart SLF was launched. In 2001, production of the Dart SLF passed to TransBus International, during which time it was sold as the TransBus Dart SLF; Alexander Dennis took over production in 2004, renaming the product as the Alexander Dennis Dart SLF.