First of all, they didn&#x27;t caught VW cheating, they caught Audi cheating, amongst others. VW was using those Audi engines. 
The press just jumped on VW, because they were the biggest and can take the biggest hit.<p>Second, the cheaters, and all of them were cheating as already presented at the CCC congress some months ago, used all the same Bosch ECU, which had the cheating option built-in with a misleading variable name, which did the detection of the test cycle. And any engine manifacturer can enable or disable this mode.
Passing the test means the legally they are all fine. Because the european and non-US emission law just honors passing this test cycle. In the US it&#x27;s different.<p>Third, historically everybody was cheating with those NOx tests. The US companies starting with that, the Asians got caught, now everybody got caught, with the new VW and Audi A5 engines actually having the least emissions of all, together with Skoda Superb and BMW 3.<p>Limiting the damage done to VW was a good marketing trick, and you are still falling for it.