Is the cost of the old parts being replaced more than the new ones in terms of the technologies being used? Mechanical cams are going to be more reliable than

Is the cost of the old parts being replaced more than the new ones in terms of the technologies being used? Mechanical cams are going to be more reliable than a pnuematic system. maintenance is going to be much different than the other 99.9% of cars that use a timing belt/chain. Skeptical that the incumbents like Bosch wouldn't have already tried this in some form they have the OEM EMS / fuel rail industry major market share. As with all things mass-auto it's down to unit price economics vs how desperately do we need to put this in the cars to meet emissions regs.