Automakers have been downsizing their engines and adding turbochargers to improve fuel economy while retaining power from larger displacement engines. But is there a point where this trend doesn't make sense anymore? Volkswagen believes that time is coming very soon.
"The trend of downsizing is over," said Herbert Diess, Volkswagen's chairman.
"Emissions tend to go up as engines get smaller."
This is due to smaller engines needing to work much harder to produce the power figures of higher displacement engines, which in turns causes more fuel to be used. Currently, small displacement engines do very well in the European fuel economy and emission tests. But the test results have come under intense scrutiny as they don't match up to real-world tests. In a few years, the European Union will introduce new procedures that include tests in the lab and real-world. The new tests could put this trend at a standstill.
Diess said they would continue to offer the turbocharged 1.0L three-cylinder and 1.6L turbodiesel, but wouldn't go any smaller in the future.
Source: The Telegraph