It's outrageous but not as bad as it seems. They used a diesel beetle on the treadmill. So of course when a diesel beetle detects that it's on a treadmill it goes in to low pollution/slow-as-a-wet-week mode. Besides they gave the monkeys cartoons to watch while breathing the vapours.
It's getting embarrassing to be seen in a VW. Anyone want to buy one?
jalopnik.com/ten-cartoon-watching-monkeys-breathed-diesel-fumes-in-s-1822432802