Well the recent up dates for me, Is I have placed foam tires on it it still want to see how fast I can get it to go. 33 mph was unacceptebale. I am going to try the Epic .18 again on the next run. Then I have an OS .18 CVR to try Then after that I think the final mill is going to be a traxxas 3.3 I have sitting. After the speed runs I think I will tone it down and put a more mellow mill in I even found thinner fron tires forit. it. Then start cutting the lexan for it. I have been pretty tempted on getting A sprint car chassis of over $300 on some website I can' find right now and work with that but my budget is spread thin Besides the one I have now is a good one to work on. because I have two completed RC10gts and another project on top of that. I have been multitasking I have plenty of parts I am just having trouble finding engine mounts for non Pull start engines...In the end I think this one will be a shelf queen because there isn't any tracks to run it. All I have is place to go off road..