For anyone that is interested in why power information from Auto manufacture is often in question and why they are only really more or less for promoting sales and not necessarily real here is why.
Unless the auto manufacture uses the internationally established SAE J1349® Certified Power an auto manufacture can claim any power output and not be held accountable for inaccurate numbers .
It wis why you rarely see SAE J1349® Certified Power next to the power advertised or in the specification.


About SAE J1349® Certified Power - Standards Development - Standards - SAE International



In nut shell:

About SAE J1349® Certified Power

Power and torque certification provide a means for a manufacturer to assure a customer that the engine they purchase delivers the advertised performance. This SAE Standard has been written to provide manufacturers with a method of certifying the power of engines to SAE J1349® or SAE J1995®. Document SAE J2723 specifies the procedure to be used for a manufacturer to certify the net power and torque rating of a production engine according to SAE J1349® or the gross engine power of a production engine according to SAE J1995®. Manufacturers who advertise their engine power and torque ratings as Certified to SAE J1349® or SAE J1995® shall follow this procedure. Certification of engine power and torque to SAE J1349® or SAE J1995® is voluntary, however, this power certification process is mandatory for those advertising power ratings as "Certified to SAE J1349®".