The whines of the different gears. The clatter of the valves. The rise and fall of the exhaust note. The sound of the wind in my ears. The roar, clop-clop and squeal of the tires. Dogs barking. Birds cheeping.
Children screaming, women fainting, old men shaking their fists......oh, that's only for old British sports cars (my specialty).
I never install any sort of radio in my old stuff (1956-1969 or so). The symphony of the winding road is sufficient.