The only people that worries about SWR is CB'rs.........

CB'rs only has one half of one megahertz to play with - hence antenna tune is critical.

If all you are going to play with is one frequency or one band - then I guess you are going in the right direction.

The missing information that my crystal ball is not clear on is the make and model of the vehicle and antenna.

With HF it is more important to have a large metal ground plane - large Suburban sized vehicle, that has all of its surfaces physically bonded together with a wide copper braid straps at all hinge points and corners - such as a pick up truck front walk away, hood, doors, cab, bed, exhaust, engine, transmission, exhaust, suspension etc..

It's more important to bond these surfaces together then it is to tune the antenna so it looks good on the analyzer.

At the same time, the ground conductivity changes as the vehicle moves down the road, so unless you plan to never move the vehicle again and operate from that one spot - the tune of the antenna will change with the earth as you travel down the road.

Hence it is not as critical to get a perfect match in a vehicle as it is using a home install that is not going to move once it is installed.

Can you see my point?

If you have a small plastic car - forget about trying to get a perfect match.