The new Porsche 911 GT3 gets different front-end styling
Prominent fixed rear wing on the new GT3
GT3 features larger 20-inch centre locking alloy wheels
New GT3 thought to have 3.8-litre 450bhp engine
0-62mph will likely take less than four seconds
New Porsche 911 GT3 sheds around 40kg compared to its immediate predecessor
These are the latest spy shots of the new Porsche 911 GT3. Seen here during winter testing, the GT3's new wheels are visible along with the prominent fixed rear spoiler, new bumpers and the integral roll cage.
Porsche insiders have claimed that the new GT3, based on the current 991 platform, will offer 450bhp. Power will probably come from an evolved version of Porsche's 3.8-litre flat six. The standard transmission will most likely be a seven-speed dual-clutch automatic.
The manufacturer will also offer the GT3 R race car. It utilises the 991 platform but is wider and features a different aero package and a completely redesigned nose. It's set to compete in the FIA GT3 class.
It's thought that the more potent GT3 RS will later return, based on the 991 platform, but not before 2015.