In response to the Miata, I have a friend who is putting an LS1 under the hood of one without too much trouble. The LS1 is the 5.7 liter GM engine that powered the fourth gen F-bodies (Camaros and Firebirds).
I thought it was pretty funny to see the number of girls here who would totally give themselves away as a genetic male as soon as they opened their mouth about cars. I love crossdressing, but I really love cars!