Well I've not spoken to Michael Ogburn in a year so don't profess to know much of what is going on with the WCH's. To my knowledge, two of the cars have Dad's motors in them. They are, obviously, not "new" technology and the newest of them was built in 2004. Jerry Jenkins' car will have a motor built by Eric Jones in it. Jerry's car is also sporting new paint, similar to the other two cars. We've not had the cars since September so I don't know anything that has transpired to the cars/motors since then.