I have owned both and both run great on the track. I repeat on the "TRACK"..
Off track how ever XRAY is the #1 choice here. Here is why:
-diff access 4 screws and your there, RDX you gut the car to get at it not fun
-quick roll center changes on the 007
-shock towers that dont have un-usable holes(RDX has some that cant even be used with stock ti-rods. so why have them??
-anti-squat,inboard toe ect ect is quick and easy from the outside of the car on the xray. On the RDX the mount screws are inside the bulkheads and trying to make a quick 30second rear toe adjustment on the RDX is unheard off as the rear diff hangs out the ass end blocking the screws
-speaking of screws... i stripped 4 within 2 races using the included torqs driver on the RDX.. yayaya get a screw kit...
-simply put the 007 looks so much kooler then the rdx on the pit table !
-diff quality is much higher on the 007
-bearings was an issue on the 007
i have not had any catostrophic failur but i need to replace the rear hub units
-4 way dampening shocks
-spring steel quality
Again on the track there are 6 or 7 chassis that can hang with each other lap after lap, its a driver setup issue... So when i look at the long list of chassis out there ontrack performance is #1 but when 5 brands can bost similar results you have to look at other things like:How much of a pain in the ass is it to work on? And can you get parts?
Oh dont forget they have the best website goin!!! Corally site is hit or miss if you can even scroll on the page!!
Again not a bash just a racer that has raced both but rather shoot the poop between races then wrestle with a car