On the other side, Citroen, the team Loeb drives for, has several times tried to put down just such speculation. The last time there were rumors of a switch to F1 for Loeb, both Loeb and Citroen said it was nothing. Citroen hasn't said anything about this latest news, but Loeb said he's "on the verge of extending [his] contract with Citroen," and that this is just about filling in when the F1 and WRC schedules don't conflict.
Not long ago it would have been considered absurd to have a part-time driver that just shows up for race weekends, and it would be pretty unusual even now. But with the in-season testing ban, it won't make as much difference as it used to. And besides, he probably couldn't be worse than Luca Badoer is at the moment... Hat tip to James!
[Source: F1 Live | Image: Roni Rekomaa/AFP/Getty]