Since I live in a CC&R housing development, I work HF in my car, a 2000 Volkswagen Jetta. My rig in my car is a Kenwood TS-50s which feeds to a trunk lip mount, where I attach various Iron Horse whips.
Here's a picture of my mobile installation:
Here's a picture of my car with the 20 meter Iron Horse antenna attached.
I work 20 meters primarily, and to a lesser extent, 17 and 15 meters.
Comments? Please email me.