In the quest to listen to shortwave beyond the home, I tried listening
with my portable in the car with very good results.

Radio: Kaito 1101. Very small size.
Radio mount: Put between the front seats on console area. I did see at
Best Buy that they sell a device that attaches to the side of a car
console and has a flat surface to lay a CD player. This would work for
a small radio as well, but I have not tried it.
Antenna Mount: Window mount with a BNC connector and approx. 5 ft. of
coax cable. I bought it at Radio Shack a couple years ago.
Antenna: Telescopic whip antenna I bought years ago for use with my
scanner (approx. 4 ft. fully extended)
Audio hookup: Cassette tape adapter hooked up to the Line Out jack on
radio and played through car speakers
Car: 1994 Acura Integra
Set up Time: approx. 1 minute

Engine noise has not been a problem and I have been able to hear the
high power stations just like at home, as well as some of the weaker
ones.

You don't want to be messing around too much entering frequencies
while driving, so it's good idea to preset the different bands, and
use a radio with scanning capability to either scan up or down from
there. Helps to memorize button locations as well.

Road noise may be a problem, so it may be helpful to use headphones
instead of the cassette tape adapter through car speakers.

I am looking around for a better antenna (flexible type) and a trunk
mount would be better which would lower the antenna height about 2
feet or so compared at the top of a rolled-up window.

Would like to hear any other experiences with mobile listening.

One last note. I am really happy with the Kaito 1101 radio, and would
recommend it highly. It got a fairly good review in the 1994 Passport.

Gerald