Was browsing the Top Gear website reading about the future Focus RS. In the article it says the new RS will have a 2.3 turbo 4 from the mustang! Power wise it looks to be around 320bhp. That is what engineers want for the new RS, so looks like the new stang will be a real go getter!
http://www.topgear.com/uk/car-news/new-ford-focus-rs-information-2012-02-13
http://www.topgear.com/uk/car-news/new-ford-focus-rs-information-2012-02-13