The next Porsche 911, the 998, is doing the rounds on German public roads. By the looks of it, the headlights are more vertical than the current model, and based on what's covered, the front and rear bumpers and valances will see the majority of the work. Intriguingly, the side mirrors on the car are from the 993, which we imagine are for testing purposes only. If the lower rear valance is any indication, the exhaust outlets could come in for revision, as well.

Techart has worked its magic, yet again, on the 997 Porsche 911 Turbo, boosting output of the twin-turbo'd flat-six to 660 hp and 634 lb.-ft. of torque. The Techart GTstreet R benefits from a duo of new turbos, larger carbon fiber inlet pipes, revised intercoolers and a new cat-back exhaust mated to the revised manifold which all help to drop the 997's 0-60 time to 3.4 seconds when equipped with an auto 'box and 3.5 seconds with a manual. Top speed is a claimed 214 mph.

Click above for a high-res gallery of the 2009 Porsche 911 C4 and C4S

Click above for a high-res gallery of the 2009 Porsche 997 Carreras

Click above for a high-res gallery of the Gemballa Avalanche 600 GT2 EVO.