Porsche has been spotted once again conducting some final road tests in the new 2012 Porsche 911 Carrera coupe. These latest shots reveal more of the new model than ever before.

2012 Porsche 911

It's only just around the corner now from when Porsche will fully unveil the new Porsche 911 at the 2011 Frankfurt Motor Show. Even so, the company seems to be putting some final touches on next-generation model and testing it out on the road.

Almost the entire body is shown on these prototypes, only some stickers cover the front and rear light designs to deter prying eyes. The rear engine cover does seem to be on full display, showcasing three-tier venting and what appears to be a pop-up rear spoiler.

The next 911 will feature a 3.4-litre flat-six engine producing around 260kW in base model form. A 3.8-litre flat six will continue to power the Carrera S, however, power will be bumped up to around 290kW.

Both engines are expected to come with a PDK dual-clutch automatic transmission and the optional seven-speed manual.

Inside, the 2012 911 is said to be more spacious than the current model, offering more legroom for both the front- and rear-seat passengers thanks to a longer wheelbase over the current model.

All will be revealed on September 13 at the 2011 Frankfurt Motor Show in Germany. We look forward to providing full coverage of the huge event.