Not all of the test mules and preproduction cars are crushed. Most are sold off at auction as x cars, i.e. VINless vehicles. And, to the surprise of most, some go for more than MSRP, usually the ones that were in the shows and have extra bells and whistlles that are not found in the production versions. Like the engine cover, and custom racing seats for example. The only ones that get crushed are ones that have had safety tests done on them, structural changes, or been through the bench tests that exceed limits. Anything that compromises integrity. The ones that are structurally sound, but aesthetically damaged or worn are sold off or used for PR, future model development, etc. I'd bet this one being towed is most certainly privately owned at this point, off to a more glorious career as a racer.