This was a minivan pulling away from the gas pump and spraying gas over the Lambo at the next pump.
The breakaway shutoff on the hose might not have worked.
And presumably the engine on the lambo was HOT. Hot enough to ignite gas. Or something else.
Just a guess...The poppet valve in the separated hose might not have fully shut down allowing the remaining fuel in the hose to spray out under residual pressure...
As I recall from my HazMat days, self service fueling systems have an operating pressure of around 60 psig, so that puff of mist we see when the fuel hose separates is likely gasoline droplets/mist/vapor that sprayed over the (hot) engine compartment of the Lambo...
What an amazing turn of bad luck for the Lambo owner...So many folks are all spooled up about who can buy a gun, and all day every day, abject idiots dispense explosive motor fuels unsupervised and operate 4000# motor vehicles...