I believe they've forgotten that their show is about racing and the true stars of the show are the vehicles. They never show a race until the halfway point of a 51 minute show. That's absolutely ridiculous. If I wanted to watch a soap opera I would, but I don't so please get back to what actually makes the show worthwhile - THE RACING!!
I understand that personalities will help when it's necessary but 90% of the show is unwatchable trash talk with guys that know how to make a car go fast but are horrible at any kind of compelling dialogue.
I fast forward through at least 3/4 of the show so I don't have to listen to most of them talk. If you want to add someone that knows how to talk trash and is seriously good at it bring in Conor McGregor, then let him train these guys how to sound legitimately entertaining. Otherwise start trimming the fat on these shows and have actual content that's not the host running his mouth or every single racer trying to slip in his catch phrase or a cliche. You're taking a awesome idea and sending it in the trash.