He also had behavioral problems: he was aggressive towards other dogs, barked too much, and he pooped anywhere.
The indiscriminate pooping is a telltale sign that he was confined in a cage 24/7. Dogs that come from cages inevitably poop in their living quarters, because that's what they're used to doing.
Boxster was one of the dogs to contract CDV (Canine Distemper Virus) but he recovered, gained weight, and grew his fur back. After six months, he is now a normal dog. He still barks a lot, but less than before, and he can mingle with other dogs. While he was always friendly with humans, he's now also friendly with other dogs.
With his dashing good looks, it's only a matter of time before Boxster finds a loving family.