I have nothing against the 240D or Denver. I was only suggesting that a 240D will have its work cut out for it in that altitude.
It more than seems that the 240D is held in high regard, it is. In this forum and others.
As for German Shepherds, my mom bred them when I was growing up. We'd have a half dozen adults and up to three litters (as in puppy litters if I'm not spelling it right) carpeting the property.
... both 3 liters