&gt; <i>These four car makers involved in the report differ from VW: they do not have a defeat device in their design. Their results are solely because of the lab-vs-road issue.</i><p>At the end of the day though, all the automakers did whatever was required to make them pass the lab testing, with no regard whatsoever for what that actually means on the road.<p>Maybe it&#x27;s good on the road, maybe it&#x27;s not, but in all honesty none of them care.<p>VW went about it different than the rest of them (that we know about), but the end result is the same - cars that pass in the lab and do who-knows-what on the road.