Theoretically you could have the F1 interior/gauges with the Carenado exterior/fde.
But I'm guessing the VC views would be a little interesting...
I'm with Matt though - it's a beautiful model and I'm sure the fde is excellent but default GPS with a G1000 skin doesn't work for me... the biggest issue: old navdata (ie fsx default). I completely understand most people don't care about that stuff, but I think I'm able to voice my opinion as well.
Anyway I wish Carenado well with this release - it certainly seems popular!