Sony have two in-house racing developers. Evolution Studios, who do MotorStorm, and SCEE Liverpool, who do WipeOut. Seems a bit silly having two teams doing the one genre, doesn't it? Does to Sony.
In an interview with GI.biz, Sony's Michael Denny says that, while the two studios currently share the same management, the two will eventually be smooshed together to share the same building. Which, if even if they didn't officially merge the pair as something like SCEE Vroom Vroom, would result in enough movement of staff between the two that our last, thread-bare link to Psygnosis (as SCEE Liverpool were known as in a former life) would be gone forever.
Sony's Michael Denny - Part Two [GI.biz]