Complex sentence: The preferred bidder Agility Trains, offered a design named the Hitachi Super Express Train, to be supplied in 5 and 10 coach versions, with 26m long coaches; 3m longer than British Rail Mk3 and Mk4 coaches.
Split into simpler sentences: The preferred bidder Agility Trains, offered a design named the "Hitachi Super Express Train". The trains were to be supplied in 5 and 10 coach versions, with 26m long coaches; 3m longer than British Rail Mk3 and Mk4 coaches.