It appears the McLaren may have been the source of some of the issues over the last 3 years. The Zero size package lead to compromises of engine accessories and cooling.
Spot on. They bragged about how good their chassis was, but the chassis was good because they had heavily compromised the engine package for aero/chassis gains. Poor decision.
This year as a customer, they are stuck with Renault’s engine package architecture, and all of a sudden the chassis isn’t so good, and the aero package has way too much drag for the downforce it is producing. Oh, and they’re still at the bottom of the speed traps, so maybe the Honda engine wasn’t as bad as it looked.