German automagazine Autobild is reporting that the next-generation 911 (991) will feature some serious changes over the current generation when it arrives end of next year.
New 911 will be 56mm longer than the current one and measure 4.49m in length. The car will stand 11mm lower and has an extended wheelbase, which will likely offer more interior room.
The entry-level standard 911 width will remain unchanged, but the Carrera S model will feature a 60mm wider rear. Next 911 also features a completely new rear axle and revised engines with improved performance and fuel-economy.
The entry level engine is reportedly a new 3.4-litre boxer with 345bhp, that takes the 911 from 0-62mph in 4.8sec and to a top speed of 180mph, while offering a 13 percent improvement in fuel-economy compared to current model.
The Carrera S will be powered by a 395bhp 3.8-litre unit with a fuel economy reduced by 14 percent. 62mph comes in 4.5sec and the top speed is 188mph.
The base 911 will weigh about 20kg less than the current model and will come with 19-inch alloys, while the Carrera S gets 20-inch alloys in standard.
The next-generation Porsche 911 will debut at the Frankfurt motor show in September 2011.