Relays.
(x) are delay's.
(0) onActivate >> Fire Relay
(100) onRelay >> setColor >> red
(200) onRelay >> setColor >> blue
(300) onRelay >> setColor >> purple
(400) onRelay >> setColor >> green
(500) onRelay >> setColor >> another color
(500) onRelay >> Fire Relay
There we go. Then on the vehicle brick, make it retain the color.