Reading the article it sounds very clever. Indeed the development costs of rollcage/safety, fuel tank are things that could be interesting to share, as there's no competition advantage to be found with it anyway. Limiting the aero options to make them less vulnerable would be interesting too. On every rally I've been, at the end of the loop, pretty much all cars have some parts that are destroyed or missing. It's expensive for the teams and not very interesting from a marketing perspective either.

His view on the dampers is quite interesting too. During the last 15 years there's been a massive development, current cars have a huge suspension travel, dampers are mounted on weird angles that seem to work. It costs a lot of money/experience to get the knowledge about it, maybe it's even one of the biggest barriers from getting new teams to play along. Fact is also that with current suspension travel they can put their wheels nearly everywhere and destroy the roads and surroundings a lot more than they used to in the past.