You need to start thinking of this as a logistics problem, not a tech problem. Ventilators is a solved problem. What is needed is a stream of parts and manufacturing capability. I'm not sure if car manufacturers are the right partners but they do have a lot of people that know how to put stuff together. They can put an assembly line for ventilators together; get a stream of parts going and start manufacturing long before we reach the peak of this epidemic. Their workers are not going to be doing anything else so let's let them have their shot. Meanwhile, other companies could start on parts manufacturing. Some design should be chosen; standardized and then we need to start moving. Everywhere. Ditto portable ICU units, negative pressure environments and training for people to help others during this epidemic. If not many more more lives will be lost.