Special recording features Sakura Ayane, Nanjou Yoshino, and Gotou Saori. I've noticed while listening to the older broadcast episodes (MP3 files in data discs) that Ayaneru actually takes the back seat when she doesn't have to drive. And here, too, it's pretty obvious she's just blending in. I guess she's the type to lead only if necessary. Well, she's also the youngest here, but I've seen her step back in other situations, too.
Also, until I listened to Joshiraku radios, I didn't know a thing about Gotou Saori's... odd side. She's a lot stranger than I thought..., in a good way.