Plus between 2006 and 2016 didn’t the tax bands change and/or wasn’t there a change in the way they were tested?
Everything from 1/3/2001 to 31/3/2017 uses the same banding system. I'm guessing the clue is in the "VW" part, they are the main people who cheat emissions tests optimise their engine mapping for the test cycle
It was hilariously simple, because the test gear needed the bonnet to be open, the ECU ran a different map when it read the bonnet as slightly open to cheat the tests.
Everything from 1/3/2001 to 31/3/2017 uses the same banding system. I'm guessing the clue is in the "VW" part, they are the main people who
cheat emissions testsoptimise their engine mapping for the test cycle