Yep....AE made some running changes to the car.
Spring type motor clamp (added spring to right hand side of motor clamp hold down screw) - helps to prevent any chassis tweak from over tightening the motor cam clamp.
Droop screw chassis & a-arms - probably the single best item changed - so far
Plastic diff halves - lightens the drivetrain (some people switch to an aluminum driveshaft to keep the rolling momentum up)
New front a-arms with holes
One running change to correct an manufacturing problem - rear hubs that were manufactured incorrectly - wrong toe in on one side versus the other