I'm looking at getting an xray buggy. Are any of them RTR?

not that i'm aware of, unless they have released one recently. try there web site.

no mention of a radio or engine..so im guessing its a no

No RTR at the moment. I think XB8 and 8R have too many adjustments for a newb. However, it is the most durable buggy going.

XRAY build quality vehicles that dont need any hop ups to be competitve... and they are designed for racers that want a totally custom package.. ie buggy.. there own radio and their own engine... no RTR comes with a nice setup

nice buggy, I think the instructions and setup advice in the back, make the buggy easy for people new to 1/8th scale, but not new to RC. If you have built a kit, 1/10th scale for example, and actually raced than you could get this competitive 1/8th buggy.