Couples more things to add off the top of my head:

Hinge pin braces and bulkeheads - They are CNC instead of cast aluminum.

Radio tray is better quality. Aluminum and design.

Radio try supports are aluminum instead of plastic.

Steering assembly bearing supported instead of bushings.

I believe the brakes are also bearings supported instead of bushings as well.

Center drives are CVD instead of dogbone.

I thinnk that's about it, although I'm sure there are a couple other differences.

HTH