Why?
Yeah, she's pretty. Whoopie-do. There are lots of pretty people. I can see lots of video of pretty people almost any time I like, often nude. As the song says, the internet is for porn.
The relevant question is whether she's any good at the job, which is unknown. Maybe she does have a passion for cars and messing about and the newspaper article just ignored that because she's pretty. Maybe she'd be a good fit with the other presenters, but that can't be known without trying it. Remember Jason Dawes? He knows his stuff and is passionate about it, but he just didn't fit with the other two so it didn't work.
Or maybe the newspaper is just making stuff up. Who said she was being considered for the part? A leak from someone in a position to know? The journalist's friend, who heard a rumour? Some random person on Twitter? The journalist themself, just making it up for a story? Who knows?