Be-bop, groovy jazz...
Miles Davis - Birth of the Cool (excellent by day or by night, city or more rural, always nice)
Some Ben Webster when it's hot.
Charlie Parker...
For me driving has always something of 'vacation', I'm always feeling like a tourist when I'm riding in a car. And I'm always surprised and find it funny to see how driving for a lot of people is something like 'war'.
It can be such joy driving in a car, with the windows open (without a roof for the lucky ones), a nice tune, some friends, a can of...
Kind regards.