The times I've heard US-style oval track auto racing on the radio, it was ... well, oan order of magnitude duller than watching grass grow. Basically, what I heard was motors whining with the accompanying Doppler shifts up and down from a fixed microphone, with commentary every three to five minutes or so, with someone reading the drivers in the lead. After that, back to the motors whining.
I know fast-paced sports like hockey and basketball can be hard to follow on the radio, but what about auto racing? I have fairly good hearing, but to my ears all the motors sound exactly alike. What am I supposed to be listening for when I hear nothing but engines? I would imagine the equivalent would be a broadcast of a basketball game, where all one heard was squeaking sneakers and dribbling on the floor, and the occasional whoosh of a ball descending into a basket, with someone reading the score every so often.