I read a long term test article not so long ago, and the writer was adamant that the car was a lot quicker than the initial tested 0-60 time. Not that they ever tested it again to give you a proper indication
There are so many variables, no two cars will be the same, different mileage at test,driver,air temp,track conditions,tyres, fuel used etc.etc. I'm sure the European ST comes with 16" wheels, I bet this would effect the 0-60 time too.
Many mags don't even test the cars, and publish results of other car mags within the publishing group world wide.
My last car was an IS 200 I'm Sure the ST when it arrives will feel a lot quicker, not because it is but because it is more nimble and louder doing it all. Its all relative so I'm not too disappointed to be riding around in a bouncy old 1.0L Micra at the moment, I could get the worst ST off the production line and it would still drive great after this.