Also in 2007, the Disneyland Monorail began phasing out its Mark V fleet of monorails in order to reverse engineer and upgrade the Mark V's to the new Mark VII models. The new Mark VII's were phased in one at a time, beginning with Red and Blue in 2008 and Orange in 2009; Purple was confirmed not to undergo an upgrade and was scrapped. These new monorails were to pay homage to the original Mark I, II, and III monorails while retaining a modern, futuristic look. The previous Mark V monorail class of trains bore more of a resemblance to the Mark IV and Mark VI monorail classes of trains used on the Walt Disney World Monorail System.