I was trying to figure out the differences between the 3.0 kit and the latest RTR Losi 8ight. On their website there's a manual and explosion parts view, but it seems to be copied from the kit. I compared all the pics I could find on the web and found these differences (RTR vs KIT):

- plastic shock caps vs aluminium shock caps
- black 6061 chassis vs gold 7075 chassis
- plastic vs aluminium hinge pin braces
- black shock towers vs gold shock towers (not sure about the aluminium grade)

The thing is I can cheaply buy brand new RTR as a roller and make this my second (spare) race car. I have all the electronics, wheels and body. Not sure if it's worth it as that roller was an RTR and I don't love them much as they usually have many parts that need to be upgraded...