Ian has/had one of the Lev-o-gages stuck at the top of his B-pillar. Seems like a bit better place than where I mounted my pitch-indicating one, but mine does alright.

I pulled one of those Toyota units out of a 4Runner about 3 years ago for $20 with plans of mounting it in my X, but decided not to, there just wasn't a suitable place to mount it. The dash just isn't contoured properly to mount it in the center, and the passenger airbag makes the only obvious place a no-go.

Brent