Report: GM to Unveil New Buick Encore Crossover and Two Chevy Concepts at the Detroit Show

As we're nearing closer to the 2012 edition of the North American International Auto Show [NAIAS], more details are coming out on the new models that will make their debut in the city of Detroit.

Last week, General Motors told us that it is preparing four-world premieres for Detroit including the 2013 Cadillac ATS premium sports sedan, but declined to elaborate on the other vehicles.

However, the Detroit Free Press is reporting today that GM spokeswoman Stephanie Rice said that the other three world premieres will be a "global production Buick crossover" and two never before-seen Chevrolet concepts.

.

New Vauxhall Insignia BiTurbo with 195HP Diesel Returns 57.6mpg UK

A new and more powerful four-cylinder diesel engine has landed under the hood of the Vauxhall Insignia (sold under the Opel nameplate in the rest of Europe and as the Buick Regal in North America). The 2.0-liter unit delivers an output of 195PS (198bhp) at 4,000 rpm and a healthy peak torque of 400Nm (295 lb-ft) between 1,750 and 2,500 rpm. .

GM May Redesign Volt's Battery, Puts Opel Ampera Sales on Hold

Providing a free loaner to Volt owners concerned about their car’s safety is all good and well – even better for some if the loaner is a Camaro or a Corvette.

However, General Motors, which is currently cooperating with the NHTSA to address the fire issues that ensued after the agency’s crash tests, may even go as far as redesigning its extended-range hybrid’s battery which is manufactured by South Korea's LG Chem.

.

Demolition Corsa: Small Opel Helps Pull Down a Wall in Poland

A supermini would be the last type of vehicle any sane person would use to bring down a brick wall, but sanity is not a particularly useful attribute when it comes to having some fun…

And that pretty much explains the 'whys' and 'hows' of this Polish experiment with a three-door Opel Corsa that you can enjoy in the video after the jump.

.

Steinmetz Hatches New Tuning Program for Opel Astra GTC

With the upcoming Astra OPC, Opel and its sister company Vauxhall have pretty much covered the needs of the go-fast crowd, but for those that already have a regular GTC model and would like some modest upgrades, Steinmetz revealed a new tuning program at the Essen Motor Show that runs from November 26 to December 4. .