I 2nd cummins. Pick the one that has the best support in your area. Pick the one most of your buddies have most likely they will support you with parts, repairs and mods. Or just pick one to different. Like Chevy and Ford they are both very capable and reliable MT’s. If it were me I would Get either the XL or the 8.0 version. "IMO" Sell the both version engines on ebay and get either an LRP or Picco. The MGT 8.0 has the better radio digital 3 channel 10 vehicle memory and comes with reverse leave it or FOC. The Savage has a better steering servo.