That completely depends on the project and how much of it is under his control vs from suppliers.
Energy storage, SpaceX and other non-Tesla related projects are typically on time or early. Most Tesla delays end up being supplier related.
The biggest issue with the 4.6 was that in any form, 2v, 3v, 4v, they were all limited to having the same internals so they all had a "safe" max of about 475whp before a rod would possibly go out. So the real only difference was powerband, and TQ once you went FI.