Lunar calendar: June 4th, the year of Wuchen
Eight characters: Wuchen has not returned to the motherland
Five elements: soil, soil, water, fire and soil
Your five elements are short of "wood", but judging from your eight characters, what you really need to make up is "golden water". Although the black (water) car is ok, it is not as safe as the white car.
the eight characters and five elements are not what is missing, but what is appropriate.
it is a misunderstanding of many people that what is lacking and what is supplemented by the eight characters and five elements.