GM announced it will build a new luxury stretch sedan called the Cadillac XTS. The new sedan, next to the upcoming Buick Regal, a redesigned Chevrolet Impala and current Chevrolet Camaro are the big hope for the company.

The new Cadillac XTS will be the largest four-door sedan Cadillac's line-up. It will come to replace the DTS and will compete with models from BMW, Audi and Lexus. The car will go into production in December 2011.

Next to the Impala and Regal, the new Cadillac XTS will be built on GM's global Epsilon platform. This means GM will built three different models for three different brands - Chevrolet, Buick and Cadillac - based on the same basic vehicle underpinnings - that can be translated into smaller costs.

"It gives GM the flexibility to juggle the production mix to meet the market," said one source familiar with the company's plans. "That is something that GM has not had the full-scale opportunity to do. In the past, they've built assembly lines dedicated to one vehicle, they run the piss out of it, and they throw money at to make the public buy it whether you want to or not. That's passé. That's the bad old days we hope will never come again."

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