From my experience and other Plus Six owners it will be the Catalytic converter. When you are really pushing the car on the motorway going uphill you can certainly smell it. One of our more "racy" owners complained about the smell from Day One! Kerry
2019 First Edition Plus Six Moonstone Blue Prev 2017 Plus 4 Auto Ivory 2011 4/4 Grey 1939 4-4 Blue
