For those of you that don’t know, the car was manufactured as cheap as possible so the owner could use them to traffic cocaine. The stainless steel was a design choice to make it easier to cut off parts of the car to retrieve the drugs. The Wikipedia states that the first prototypes were carbon fiber but supply chain issues caused the car to be too expensive. They basically made the cheapest thing passable as a drug mule, sold it for some crazy price, and packed drugs into it.