Over 600 mainly MkII metrobuses were overhauled .
The contract ended abruptly in 1999 due to lack of confidence in Marshall Bus over delays with WMT orders for their new single deck buses .
Over 600 mainly MkII metrobuses were overhauled and the contract ended abruptly in 1999 due to lack of confidence in Marshall Bus over delays with WMT orders for their new single deck buses .