[Robb]

Well the 500 is a nice step up from the 450. The ride is 100% better, and the power is there. Its worth it for sure. The 500 is better then the 450 in every way imaginable, my $.02
Dont much about the Rincon, but the Rubicon is nice as well.

 

[Robb]

I would say handeling is very similar, but the ride quality is where the 500 shines. it is very smooth compared to the 450.
450 = DumpTruck, 500 = Cadillac

 

[Robb]

they are both SRA, and im not sure what makes the 500 ride so much better, cause be looking at them both, they appear the same, but there is a major difference in ride quality, maybe its just cause its new??