The British Rail Class 143 is a diesel multiple-unit railbus, part of the Pacer family of passenger trains introduced between 1985 and 1986.
Great Western Railway Class 143 at Dawlish in 2018
Great Western Railway refurbished saloon
Unlike most rolling stock on the UK network, Class 143s have a single axle at each end of the vehicle (red boxes).
Regional Railways 143615 at Cardiff Central 1996
Pacer was the operational name of the British Rail Classes 140, 141, 142, 143 and 144 diesel multiple unit railbuses, built between 1980 and 1987. They were inexpensively developed using a passenger body based on the Leyland National bus on top of a chassis based on the HSFV1 research vehicle. The railbuses were intended as a short-term solution to a shortage of rolling stock, with a lifespan of no more than 20 years. As modernised replacements were lacking, the Pacer fleet remained in service on some lines until 2021 – 37 years after their introduction in 1984.
A Class 142 and Class 143 at Exeter St Davids in 2011
Some Pacers were based on the Leyland National bus
The bus style bench seating originally used on a Class 144 Pacer
The prototype Pacer Class 140