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Road testing the Cadillac STS

2006 Cadillac STS

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The last two decades haven't been easy for Cadillac. Caught in a changing world, the car that used to be known as the Standard of the World saw its luxury credentials usurped by Mercedes-Benz and BMW, then by Toyota's luxury Lexus division.

Saddled with GM's 1980s mandate that all sedans had to be front-wheel-drive, Cadillac was left with few options.

Nonetheless, it soldiered on, creating an all-new Seville in the 1980s that was designed to have a European flair. The effort was only partially successful, limited by the front-wheel-drive chassis and manufacturing quality that was second-tier, especially when compared to Lexus.

With the huge success of its Escalade SUV in the late 1990s, and the return of rear-wheel-drive to the sedan lineup with the entry-level CTS, Cadillac is poised to regain some of its former passenger-car glory.

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It's going to do that with the STS, the all-new model that replaces the Seville.

Designed from the Sigma global chassis that also formed the basis for the smaller CTS, the STS is a smartly styled sedan that makes no compromises in its effort to offer luxury in a package that's fun to drive.

It's available in three configurations: A base V6 model that has a 255-horsepower 3.6-liter engine; a V8 model with the very smooth 4.6-liter Northstar engine that delivers 320 horsepower; and an all-wheel-drive version available only with the Northstar V8.

The transmission for all three is a five-speed unit that is among the best automatics GM has ever offered.

Prices start at $40,995 for the V6 model and rise steeply for the all-wheel-drive version. Our test car was a V8 STS and carried a base sticker price of $47,495, but the optional luxury performance package, which included everything from a heated wood-rim steering wheel to XM satellite radio to rain-sensing wipers to magnetic ride control to a sunroof, jumped the price to a breathtaking $58,560.

That's a stiff price, but not out of line with similar V8 competitors such as the Lexus LS430, the BMW 5 Series and the E Class Mercedes-Benz.

So what do you get for that much cash? A very satisfying luxury sport sedan that's easily the best Cadillac in decades.

The latest generation of the Cadillac styling theme that began with the Escalade and was most prominent on the CTS, the STS is a very handsome sedan that looks modern yet not flashy. It is larger than a BMW 5 Series, but doesn't appear so. It successfully captures a European panache, but looks decidedly American.

For those who crave Cadillac quiet, the STS has triple door seals, uses a special grade of steel in the dashboard and has made aerodynamic tweaks overall to create a car that rides more quietly than any other GM car we've driven, and rivals the Lexus LS430.

Interior, 2006 Cadillac STS

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Inside, with the added luxury package, there's cabin that is plush without overdoing it -- a balance lost in previous big Cadillac sedans. There's eucalyptus trim throughout, and the front seats are both heated and ventilated.

Seating for five adults is very comfortable and suitable for long trips without fear of fatigue. Standard is a full spread of front, side and head curtain airbags.

For the driver, the Northstar V8 -- which has a keyless system and starts and shuts off with the push of a button -- delivers crisp, rocket like thrust, yet doesn't make the STS feel like a hot rod. The handling with the optional magnetic ride control is an optimum mix of sport-sedan feel -- with great steering feedback -- and a smooth highway ride.

Fuel mileage, usually not a huge consideration in this price range, is rated at 17 to 26 miles per gallon by the EPA, and we saw an average of 21 mpg.

Although we weren't able to test the V6 version of the STS, reports indicate it's a capable performer and well worth considering, especially given the $6,000 base price differential with the V8 model. The all-wheel-drive model, which carries a sticker of $63,510, but is also loaded with features that are optional on the other models, is worth considering in places where winter lasts more than a few months.

For those who crave a powerful performance sedan, Cadillac, taking a cue from Mercedes-Benz's AMG high-performance models, will introduce the STS-V late this year. The V version will have a 440-horsepower supercharged 4.4-liter Northstar V8 coupled to an all-new six-speed automatic transmission.

Altogether, it's safe to say that the STS is unlike any big Cadillac sedan ever built. And that's good news for fans of American-made luxury.

Specifications:

Base list price, including delivery charge: $47,495
Engine: 4.6-liter V8
Horsepower: 320 @ 6,400 rpm
Transmission: 5-speed automatic
Chassis: Rear-wheel-drive; Full-time all-wheel-drive (opt.)
Basic warranty: 4 years/50,000 miles
Fuel economy: 17/26 mph EPA est., 21 mpg observed
Factory to customer rebates: $1,500 rebate to current GM vehicle owners
Factory financing/lease: 5.9 percent financing

-- Posted: Feb. 15, 2005

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