Source: Chevrolet - Press release after the "read more" jump.
Source: Porsche - Press release after the "read more" jump.
Update: Ford has released a new press release with more specific drivetrain info which has been added after the jump. This begs the question(s), "Is the new EcoBoost Mustang a rally racer that should fit in your garage," or "is the base 'Stang a balanced performance economy option for you," or is the V8 thumper your speed ideal?" Good questions all.
Source: Ford - Press releases (3), pics (3) and video after the "read more" jump.