changed, the Restaurant Kitchen was replaced by a fifth standard-class coach. InterCity 225: a Class 91 electric locomotive, nine Mark 4 coaches and a Driving Van Trailer (DVT) operating in push-pull mode; introduced in 1990, with electrification completed in 1991. This saw most of the HSTs transferred to Great Western, Midland and Cross-Country routes, but some remained for the runs to/from Aberdeen, Inverness and Hull. West Coast – London Euston to Wolverhampton used Class 86 electric locomotives hauling Mark 2 carriages and operated at 100 mph. Euston to Glasgow services used Class 86, Class 87, and Class 90 locomotives hauling Mark 3 coaches and operated at 110 mph. Euston to Holyhead services used Class 47 hauled Mark 2s or HSTs. From 1988, West Coast trains operated in push-pull mode with a DVT at the London end of the train. Before DVTs were introduced, larger fleets of Classes 81–87 were used to haul the trains conventionally. Class 50s operated in pairs north of Preston until electrification was completed in 1974. Midland – Class 45, 46 and 47 locomotives hauling Mark 1 and Mark 2 carriages. HSTs replaced the loco-hauled trains in the 1980s. Great Western – InterCity 125s from new, which replaced Class 52s. Other services were also operated by Mark 2 carriages hauled by Class 47s and 50s; later these were transferred to Network SouthEast and replaced by Class 165 DMUs. Great Eastern – Class 47 diesels hauled Mark 1 and Mark 2 carriages before electrification of the route in the mid-80s. Class 86 electrics were introduced to haul trains from Liverpool Street to Ipswich from 1985, with through electric trains reaching Norwich by 1987. Mark 2 Driving Brake Standard Opens were cascaded from Scotland in the early 90s, so that trains could operate in push-pull mode. Some routes transferred to Network SouthEast, leaving London-Norwich and the London-Harwich boat-train with InterCity. Cross Country – Some routes were operated by InterCity 125s, but with only one first class carriage and standard class seats in the buffet car replaced the restaurant. Other routes saw Mark 2 carriages hauled by Class 47 diesel locomotives. Services operating north of Birmingham on the West Coast main line switched to electric traction using Class 86 and Class 90 locomotives. DVTs were not used. Gatwick Express – Originally used dedicated Class 423 electric multiple units as part of the Southern Region. Prior to being transferred to InterCity,