We now have official shots of the long-wheelbase version of the Cadillac’s DTS sedan. The extended version, dubbed the DTS-L, will hit showrooms early next year and will be powered by the same 275hp 4.6L Northstar V8 from the standard version. Key changes are the extra 8 inches in length and Cadillac’s “VIP privacy” rear seating that hides passengers behind the car’s c-pillar.

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The stretched DTS will be assembled alongside the standard model at General Motors’ Hamtramck plant in Detroit, and should help maintain Cadillac’s sales lead for the DTS until the new Zeta-based model arrives in 2010. We should see the DTS-L at the LA Show at the end of this month. Chrysler is rumored to be launching its own LWB version of the 300.