No, I don&#x27;t have a source I can point you to. I was talking to a Audi mechanic last weekend. He told me that 2015 cars were pretty much unaffected and will likely only get a firmware tweak.<p>2013-2014 cars need to hold 1&#x2F;2 gallon more exhaust fluid and apparently that&#x27;s doable (and also new firmware).<p>Older cars are a bigger problem and will likely get a combination of fixes but in the end, they are going to be louder, fuel hungry cars after getting &quot;fixed&quot;.<p>The oldest cars will likely get owners a buy-back offer because the depreciated value is lower than the cost to fix.