Let's say you crash into a 2020 Tesla, how much will your insurance pay if it's totaled? According to a CarGuru.com valuation, a Model 3 of that year is worth about $63,000 at the time of this posting. Auto insurance normally pays Actual Cash Value.
It may not be another car that you hit. It could be a streetlight, a building, a sign, a road barrier, etc. Those aren't cheap, either. Check the amount of Property Damage coverage that you have on your auto insurance policy and ask yourself, "Is that enough?"