Sorry to say no car will hit spot on BHP as shown in the papers.
You have to considered
*The rolling road accuracy , which some are know to read more.
*How rich your fuel is?
*general health of the car
* and how much did the computer configure the drive tran lost percentage etc etc
My car rolled 309BHP one mid summer afternoon stock.
MY08 E92 335i M Sport|Wrap by Surrey Project |ETS Intercooler|VSRF Dp's|BMS OCC|BMC filter|CoBB AP|EBC Yellow & Coolcarbons rear|Alpina AT Map|Michelin PSS |CF grills,CF mirror,CF Performace spoiler|LCI light|CIC controller retrofit|2014 Mods: Birds B3 Suspension kit,Project Mu pads,Afe Filter and PTF Protune & Pilot sports cups. Gone:Forged FMIC, Eisenmann Race Quad, Eisenmann Sport Dual, Duke Dynamic Diffuser. Eibach Pro springs.