i dont know much about the rx-8 or rotary engines. but my grandfather and cousion are mechanics and my grandfather was the town wheeler dealer for a while by flipping cars. but back to the point, i just crave the doiritos power and high rev engines, so i am crazy for rx-8s but i know they need maintenance. 1. how hard is it to rebuild a renesis yourself? 2. would it be more cost effective in the long run to swap in a rebuilt 13b? 3. how hard are they to work on and 4. is it drivable in the winter with winter tires?