For reasons including the ratio of such cars on the road, and the relative ease of putting out an ICE fire versus a multi-day un-extinguishable lithium battery

For reasons including the ratio of such cars on the road, and the relative ease of putting out an ICE fire versus a multi-day un-extinguishable lithium battery fire. An NHTSA study in 2018 predicts that the rate of such fires will be "somewhat comparable" between vehicle types, it's the duration and severity of the fires that differ.