A stick of butter represents about 1kWh of chemical energy, and a 2000kg vehicle at 225 km/hr represents about 1kWh of kinetic energy. The latter is intuitively more dangerous because the energy could easily be transferred (to e.g. a person standing in its path) in an instant.
Heck the specific energy of any given piece of matter is c squared, but we don't (as of yet) know how to get it out except under a few very special circumstances :)
Lithium-ion batteries are far worse than kerosene as a hazard. New York City has a big and growing problem with people charging scooter-sized electric vehicles in apartments.[1]
[1] https://www.nytimes.com/2023/02/21/nyregion/lithium-ion-batt...