They do not sound nearly the same in person as they do on TV- TV cuts most of the lower frequencies and accentuates the highs. In person, the sound hits your chest like a ton of bricks, and makes you forget the comparison to a muscle car V8 rumble. It is much more impressive.
That said, if you want throaty, you want low RPM. F1 motors for the last ~20 years have IDLED at a higher RPM than "throaty" sounds, so you aren't going to make them sound like an endurance racing V8/10/12. Especially a flat-plane V8, which (like a Ferrari roadcar) is going to sound like a big I4.
The lower RPM V6 next year will have a slightly lower rumble in the note, though the single exhaust means that it is going to sound like it is running at a higher RPM than if each bank were exiting independently. The sound is a good compromise between the current high RPM V8s and the older V10s.