Can I drive a car that has no coverage?

I live in WA state. I have 2003 Jetta that, while it's mileage is fairly low (around 160K) for a 21 year old car, is in bad shape (exterior, interior AND has had multiple mechanical issues). I do have insurance, including of course WA state's mandatory insurance requirements for bodily liability coverage. I also have a CR-V that has some coverage as well. The thing that is not clear to me is if I can drive my Jetta without any coverage (essentially not even listed as a covered vehicle), since if I were to be involved in any collision, I would not care to repair the car. A KBB value of my car is $1900 for a private party sale, but I think that is rather optimistic. Does it make sense to get collision coverage around $1500-$2000? Right now, I have to get a coolant leak fixed which I estimate to cost around $800-$1K.