[aisenik]

consumer fireworks (1.4g) cannot blow up like this, by design and regulation. fire marshals can and do enforce this at points of sale & distribution

professional fireworks are also regulated to minimize mass-explosion risk.

if fireworks were involved in the explosion, it would necessarily be an improvised device. achieving this level of explosion with consumer fireworks would be difficult. the fireworks are a red herring, imo.

[neom]

Video of it exploding def shows fireworks going off everywhere, but to your point, trunk looks stocked with loads of diff stuff: https://x.com/BNODesk/status/1874610151959019812/photo/1