FRANKFURT -- Porsche has added turbocharged engines to its 911 sports car range to help meet tough fuel economy and carbon dioxide emissions rules.
The new turbos will offer a 20-hp increase from the current engines while lowering emissions, Porsche said. They will debut on the re-engineered model unveiled this week at the Frankfurt auto show.
"We are switching to turbocharged engines mainly because the stricter emission regulations cannot be reached otherwise," a Porsche spokesman said. "We will still offer naturally aspirated engines in some versions such as the GT3 but by and large there will be a shift to turbocharged engines across the broader range."
The 911 also gets small, evolutionary design changes. The re-engineered models will be launched in Germany in December and will go on sale in the U.S. in March.