As sad as it sounds midmotor cars go fantastically when you have lots of grip, carry a lot of speed round corners and jump very nicely and and and...
Once it gets slippy though they turn pretty much undriveable. I have seen this at a couple of races now with homebuilt and X-Factory cars. They go really well on carpet or bluegroove but as soon as it gets dusty they really struggle to get the power down out of corners.
Your car does look really nice though
Just put it away for the next winter indoors season...