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2006 Cadillac STS-V Photo Gallery

GM’s luxury sleeper

AS
by Autobytel Staff
March 14, 2006
3 min. Reading Time
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Give it just a quick glance, and you might think the 2006 Cadillac STS-V is just another domestic sedan, though the chrome mesh grille, lowered fascias, and domed hood hint at the power within. More than simply a luxury car, the STS-V offers impressive performance from its supercharged V8 and sport-tuned suspension and brakes.

Engine

Engineers put a lot of effort into making the 2006 Cadillac STS-V worthy of its V-series designation, though at the heart of it all is a superb supercharged engine. The 4.4-liter, 32-valve, dual overhead cam, Northstar V8 with variable valve timing cranks out 469 horsepower at 6,400 rpm and 439 lb.-ft. of torque at 3,900 rpm, with peak twist available between 2,500 and 6,400 rpm. Based on the popular 4.6-liter V8 currently used throughout much of the Cadillac lineup, the 4.4-liter motor incorporates the use of new heads, crankshaft, pistons, and connecting rods, a multi-layer steel head gasket, twin induction silencers designed to limit supercharger whine, and a Roots type supercharger offering 10-12 psi. Each engine is hand-built in Michigan, and ultimately connects to a six-speed, manually-interactive automatic transmission.

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Design

Design upgrades for the 2006 Cadillac STS-V include a chrome mesh grille above and below the bumper that aids engine cooling by 34 percent; integrated front fog lights; a raised dome hood that hides the supercharger and gives the Caddy a more powerful appearance; rocker panel extensions; and front and rear fascias that sit lower to the ground; dual chrome exhaust tips; a deck lid spoiler that’s 14-mm higher than normal; and 10-spoke alloy wheels. Inside is a hand-sewn, 100-percent genuine leather interior with ultra-suede inserts, and olive ash burl wood trim is used on the instrument panel, shifter surround, and door grab handles.

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Handling

Handling is enhanced with a sport-tuned independent short- and long-arm front suspension and an independent multi-link setup in the rear; standard front and rear stabilizer bars; traction control and StabiliTrak stability control systems; and a limited slip differential. Speed-sensitive steering, with a quicker response than offered in the regular STS, further aids overall control. Collectively, this package has led to a 15-percent increase in ride stiffness, a 35-percent increase in roll stiffness, and a 17-percent decrease in understeer. According to Cadillac, the 2006 STS-V pulls 0.87g on the skid pad, which, not so coincidentally, is the same figure reported for the 2006 BMW M5.

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Pricing

Becoming the proud owner of a 2006 STS-V is as easy as visiting a Cadillac dealer and signing over $77,090, a number that represents the car’s $74,270 base price plus a $720 destination charge and a $2,100 gas guzzler tax. And, apparently, company bean counters calculate that figure to be both profitable and competitive, as the often expensive option package list includes just one item – a sunroof delete option that lops $1,200 off the sticker. ‘Yer bare-bones, hot-rodding Caddy now runs $75,890, out the door.

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Brakes

Charged with halting the 2006 Cadillac STS-V is a beefy antilock disc braking system with electronic brake assistance. Those Brembo components sit behind alloy wheels rolling on 255/45R18 Pirelli Euforia tires up front and 275/40R19s out back. These are run-flats good for 50 miles after being damaged.

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Performance

With that 469-horsepower, 4.4-liter supercharged V8 stuffed under the bulging hood, the 4,233-lb. 2006 Cadillac STS-V reaches 60 mph in 4.8 seconds and tops out at a governor-limited 155 mph.

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Specifications

Test Vehicle: 2006 Cadillac STS-V Base Price: $77,090 (including a $720 destination charge and $2,100 gas guzzler tax) Engine Size and Type: Supercharged Northstar 4.4-liter V8 Engine Horsepower: 469 at 6,400 rpm Engine Torque: 439 lb.-ft. at 3,900 rpm Transmission: Six-speed automatic Curb Weight, lbs.: 4,233 EPA Fuel Economy (city/highway): 15/23 mpg Observed Fuel economy: 14.4 mpg Length: 197.6 inches Width: 72.6 inches Wheelbase: 116.4 inches Height: 58.2 inches Legroom (front/rear): 42.6/38.3 inches Headroom (front/rear): 38.7/37.9 inches Max. Seating Capacity: Five Max. Cargo Volume: 13.8 cubic feet Competitors: Audi S6, BMW M5, Chrysler 300C SRT-8, Dodge Charger SRT-8, Jaguar XJR, Maserati Quattroporte, Mercedes-Benz E55 AMG.

Photos courtesy of Cadillac

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