While I do agree that the Jammin is probably one of the best RTRs out, keep in mind, you can't compare the shootout Jammin X1-CR to the Jammin X1-RTR. They have a different chassis, shock towers, radio plate, chassis braces, chassis stiffeners, knuckles, drive axles, and motor mounts. I am not a very good driver, but I would think that all of those items must account for some difference in handling and durability.
Plus, if people compare shootout results to RTR counterparts, someone may end up buying the Kyosho RTR, since the Kyosho MP777 SP1 won the shootout. That car had every single part downgraded except the transmission cases, suspension arms, body, wing and wing mount. I have heard many horror stories about that car (it doesn't even have modern diffs or clutch setups). Its amazing how the company that produces the best kit, can turn around and make the worst RTR.
So, yeah take emu's advice about the X1, but don't go by the shootout results alone, unless you are buying the exact kits they compared.