Opel will debut its new mid-size sedan at next year’s British Motor Show in July, a car which drops the familiar Vectra nameplate in favor of the new Insignia title. Prototypes of the car have been spotted recently by spy photographers, revealing its basic shape, but this official teaser gives us a look at the new tail-light design.

Europe should see the new Insignia in showrooms soon after July’s launch, however the United States won’t get to see its version of the car, the new Saturn Aura, until 2011 at the earliest. The U.S. models will also likely get some minor styling revisions to suit North American tastes.

The new model features a wider and taller body than the current generation Vectra/Aura and will be built on General Motors Company's [NYSE:GM] new Epsilon II platform. This means the car will retain its front-wheel-drive configuration and will be available in sedan, five-door hatch, and wagon bodystyles.

The larger body will position it better against its main rivals in the U.S. such as the Toyota Camry and new Honda Accord, both of which have grown considerably in size recently.