I run a KO Mars, it's the limited version made in 2000 (with 22 model memeory
, but I only have 3 cars...go figure..). I have no intention of changing radios because I love the way it feels, it's light and I'm so used to it. I've added a touring car tire to it with the special adapter and is awsome. This radio is out of date but it works for me. The Helios is super nice, M8/M11 looks ok, the 3PK is good, the R1 is way to heavy, Nomadio looks weird but awsome features.