Listen to this article VW announced recently that Porsche and Audi are set to enter the sport when the new engine formula is introduced in 2026, pending final confirmation of the rules. A new power unit budget cap is set to include an extra margin for new entrants as they develop their engines over the next three years, in order to help encourage them to come in. Porsche are Audi are expected to run independent projects, with the former developed in conjunction with Red Bull Powertrains, and the latter hailing from Audi Sport’s base in Germany. Rivals are concerned about possible collaboration between the two brands that could help both to get more out of the budget cap figure than they otherwise would. There are also question marks about any potential carry over of intellectual property from Honda to Porsche via Red Bull, which could call into question the Stuttgart ma …