Found this interesting tidbit:
Quote:
Right-hand-drive Volkswagen Polo diesels will have slightly worse fuel economy and higher CO2 emissions than the left-hand-drive versions sold in mainland Europe.
This is because the oxidation catalyst and diesel particulate filter in the exhaust system have been moved... [to permit the switch to right-hand drive].
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The figures given for the 1.2 L diesel are:
- 90g/km of CO2 for right-hand-drive in UK
- 87g/km of CO2 for left-hand drive elsewhere
(CO2 is proportional to fuel consumption.)
I wonder just how convoluted the UK exhaust routing had to get to have a measurable effect on fuel economy?
Source:
http://www.whatcar.com/car-news/vw-p...iciency/244512