I fucking love Koenigsegg but agree on SuperCarBlondie. I saw one of her videos and was like WTF car is that, and checked out just as quick thanks to her over-the-top enthusiasm on random details and also the fact that you'll notice she never actually drives anything more than like 10 feet in most of her videos.
So it's basically a ton of cars that are damn near vaporware that nobody has ever heard of or will likely ever see, with limited "production" runs, that will never see the street, presented by a model who lucked into her channel by dating an obscenely wealthy dude who bought her an extravagant Valentine's Day present (Ferrari filled with roses and balloons).
She's gorgeous and I'd hope there's more to her than the pamphlets like you guys said but there's not much info out on her other than "influencer, instagram / facebook model, etc". If I were her I'd be taking every racing and driving class I could in my spare time just so that if I ever got a chance to drive one of those hypercars on a track I could feel comfortable enough to do it justice, even if I didn't get anywhere near its capabilities.