Toyota's MC platform supports a range of the company's models from the Corolla to the Venza, and it also does duty under the Scion tC. With Scion having just introduced the new 2011 tC, it looks like the company might also want to do more with it. Scion vice president Jack Hollis told Ward's Automotive that a Tc with five doors is "possible."
It would make sense to provide a Tc with more doors. After all, Scion is designed to be a feeder brand that encourages owners to eventually move into Toyotas. The tC coupe is important, because it draws customers with Scion's youngest average age: 26. Giving them another point of entry into the brand, and offering those with bigger needs a sporty four-door (neither the xB nor xD fit that description) would not be a bad thing.
At this point it's all merely talk, but it's talk that makes sense. And if Scion isn't going to daringly style its way to a new customer base, more doors on a proven, flexible platform might be the next best thing.