STUTTGART -- Four years after the launch of the current series, Porsche's iconic 911 will be upgraded for the summer of 2008.

The front end will get a larger air intake, and the rear lighting will be redesigned.

Major technological innovations to the 911 will include a conversion of the six-cylinder gasoline engine to direct injection and the addition of an optional dual-clutch transmission.

The transmission will allow shifts without interrupting driving power, even in manual mode.

Porsche's direct-injection engine, dubbed DFI, is projected to cut fuel consumption by about 10 percent.

The updated generation of the 911 also will come with improved performance. The Carrera S coupe, which starts at 88,247 euros ($115,474), will have at least 370 hp, up from 355 hp.