Testing regimes vary from continent to continent. Top Gear article seems to suggest that the 8.5 litre per 100km while autobahn driving is 'impossible' to acheive', suggesting that they tried for a while on the autobahn. This was done earlier during the inclement whether. Trip later on in the article, with clement weather conditions was performanced at just over 4,000rpm at average of about 180kph for about half an hour. Then 160kph over a two hour period, but no mention of fuel consumption. I formed the opinion that they tried both economy & performance runs.
Cheers.
WJ
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