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The only other car tested, by this group anyway, was a BMW that "performed very nicely – at, or below, the certification emission levels."
by impostervt 11y ago
The only other car tested, by this group anyway, was a BMW that "performed very nicely – at, or below, the certification emission levels."
- scrumper 11y agoThat was a very different car - a heavy, 7 passenger SUV (X5) vs the comparatively modest VW sedans. What's going on there? Was it held to a different standard? Does its bigger engine not have to work as hard? Edit: I read the relevant bit of the paper. 6 cylinder engine vs. the 4 pots in the VWs, and probably more importantly it had a urea NOx reduction system so perhaps that made the difference.