When a piece of technology…
When a piece of technology stops working and CANNOT be repaired due to bad design or being obsolete, it's called "bricked." For example, VCRs that are not in mint shape, older game consoles, older computers, etc., become useless paperweights or bricks.
"frunk" is short for "front trunk", usually. in this case, they're referring to the fact it has cargo space under the hood instead of an engine. think original Beetles. they're probably using a different meaning, here, but I think the charging ports are under the hood?