a tow vehicle is for towing a trailer.
what i think you're talking about is referred to as a "toad".
a lot depends on what you want to do with it. many use 4x4's because they like to have it for off-roading.
others buy something just for touring around and buy a small fuel-efficient car.
some like to have a pickup.
it all depends and there is no one choice.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC