Hello people, collecting a dc01 blue/silver later, i read on here that the standard blue was because when they made the break through they had too much of the blue parts left over. Anyway unsure weather is will have a ydk or amtek motor. I have had 2 dc01s at the same time a year between production dates and 1 was ydk 1 was amtek. Anyone shed any light when they fitted ydk motors as i know the original da001 things and very very early dc01s with the sqaure dyson logo was ydk. Just unsure about the late machines. I know you cant get a de stijl or absolute with a ydk motor.