Hello, after my little car now has 206.000 on the clock, I want to get a bigger car and love it with a Mazda 6. Now my question: I have pulled 2 offers into the short choice, both vehicles year 2003, both Sport 2.0 CD Exclusive, one has 89, the other 100 KW; the first has a green badge, the second does not?! Of one retrofit is mentioned at the first but nothing! Can this be that one model meets Euronorm 4 and the other no more r 3? I prefer the 2nd vehicle, but definitely need a car with a green plate, what would a retrofit cost about? I also happened to read that you have to have the catalyst changed in addition to the retrofitting for vehicles older than 5 years and/or a mileage over 80,000 km, can you confirm this and what is still to happen? Unfortunately I found no answer here in the forum and am not particularly autoversed ;=) K urze Question on the edge: Is the KP for a Mazda 6 year 2003, 140,000 km in the amount of 4,200/4,500 € (both accident-free, 2nd hand, 8-fold tire…) ok?