Test tuning seems to have a long history at VW. The VW subsidiary Porsche tuned the 918 spyder with a battery just large enough to pass fuel consumption test at

Test tuning seems to have a long history at VW. The VW subsidiary Porsche tuned the 918 spyder with a battery just large enough to pass fuel consumption test at ~78mpg, or 3l/100km which is ridiculously far from reality. I am very curious, as to who wrote that patch. Afaik, almost all German manufacturers buy their common rail Diesel motor control units from Bosch. Stuff like pressure adjustment, valve control, or silly 'sports mode' buttons are all designed at Bosch. They ship a modular firmware which the manufacturers customize. Maybe VW were not the only customers of this special 'feature'.