HugoLarsen:ManagingDirectorCarlRydberg,1924,oiloncanvas.Privatecollection.

Hugo Larsen: Managing Director Carl Rydberg, 1924, oil on canvas. Private collection.

Butwhatreallyhappened?

But what really happened?

Estimates(byautomakers,start-stopsystemmanufacturers,andindustryanalysts)ofthefueleconomyimprovementfromthistechnologyrangefrom5to15percent.

Estimates (by automakers, start-stop system manufacturers, and industry analysts) of the fuel economy improvement from this technology range from 5 to 15 percent.

Minorirregularitiesarenothingcomparedtothewheelsandniches,andtheyformthemainresistance.
Minor irregularities are nothing compared to the wheels and niches, and they form the main resistance.