they are completely different vehicles. Where do you have to run? If you have more off road places to run, go with the Savage, which can also be used on road. If you have more big wide open flat places like parking lots, then go with the on road tc. There are a few weaknesses with the Savage right off, the diffs are weak, seems like a lot of people are destroying diffs in these things, myself included. I personally don't know much about the super rs4, I have an RS4 3, but I would suggest a regular tenth scale tc if you go on road, TC3, RS43 ss, something along those lines. The super uses 300mm bodies, as well as other odd sized parts that you will most likely have to get from mail order, as I have never seen a hobby shop with any type of selection of parts for the super. The super rally will let you go on gravel, hard pack flat dirt, but won't give you the off road caopabilities of the Savage.