2006 · Cadillac · United States

2006 Cadillac V-Series: A Family of Three

The V-Series became a family: the CTS-V moved to the 6.0-liter LS2, and the supercharged STS-V sedan and XLR-V roadster joined it.

United States · researched through 2026-09-23

Black 2006 Cadillac XLR-V roadster, front three-quarter, in a parking lot
2006 Cadillac XLR-V Photo: MercurySable99, CC BY-SA 4.0, via Wikimedia Commons

This record's own dek states that the V-Series became a family in 2006: the CTS-V moved to the 6.0-liter LS2, and the supercharged STS-V sedan and XLR-V roadster joined it. This record's own overview states that the CTS-V sedan switched to the 6.0-liter LS2 V8, still rated 400 hp with a six-speed manual, while the STS-V sedan and XLR-V retractable-hardtop roadster used a supercharged 4.4-liter Northstar V8 with a six-speed Hydra-Matic 6L80 automatic, and that Cadillac V-Net's production list gives 1,201 CTS-V, 1,306 STS-V, and 1,147 XLR-V cars for the model year, the XLR Net's Bowling Green Assembly figures agreeing on the 1,147 XLR-V total and splitting it by color.1,2

This record's own key facts state that the STS-V was rated 469 hp at 6,400 rpm and 439 lb-ft at 3,800 rpm in GM Media material released August 1, 2005, and that the XLR-V was rated 443 hp at 6,400 rpm and 414 lb-ft at 3,600 rpm, SAE certified, from the same release date. They also state the 2006 XLR-V color split: 562 Black Raven, 299 Light Platinum, and 286 Infrared, totaling the full 1,147 cars.1,3

This record's own production notes state that the three XLR-V color rows partition the 1,147 total exactly (562 plus 286 plus 299), and that the XLR Net page's Shale and Ebony interior tables give XLR-V counts for each color-and-interior combination, six rows that reconcile to both the three color totals and the 1,147 figure, though the page itself prints no interior subtotal and this record's own interior totals are shown as estimated sums of those rows. This record's own production rows also note that the two presentations of the 1,147 XLR-V figure, from Cadillac V-Net and from XLR Net, are both enthusiast compilations that may share one underlying lineage rather than independently confirming each other.3,3

This record's own engines section documents the LS2 6.0-liter V8 in the CTS-V at 400 hp at 6,000 rpm and 395 lb-ft at 4,400 rpm with 10.9:1 compression, the supercharged 4.4-liter Northstar in the STS-V at 469 hp and 439 lb-ft with 9.0:1 compression, and the same supercharged Northstar in the XLR-V at 443 hp and 414 lb-ft, SAE certified. This record's own transmissions section documents the Tremec T56 six-speed manual standard on the CTS-V against the Hydra-Matic 6L80 six-speed automatic standard on both the STS-V and the XLR-V.1,1

This record's own identification section documents model codes 6DN69 for the CTS-V, 6DX29 (GMX295) for the STS-V, and 6YX67 for the XLR-V, and states that the order guides list RPO codes including LS2, M12, GT4, and J56 for the CTS-V, and LC3, MYC, GU5, G80, J56, Q20, Q19, T43, NV7, and YQ4 for the STS-V. This record's own options section documents QT8 Sterling Silver wheels and UR2 DVD-navigation audio as standard on the XLR-V, alongside sunroof-delete, block-heater, and emissions RPOs shared across the CTS-V and STS-V order guides.4,5

This record's own prices section documents a $77,090 base price for the STS-V and a round $100,000 figure for the XLR-V, both as reported by MotorWeek rather than a factory price sheet. This record's own specifications section documents final drive ratios of 3.73:1 for the CTS-V, 3.23:1 for the STS-V, and 2.56:1 for the XLR-V, and this record's own performance section documents MotorWeek-measured 0-60 mph times of 4.8 seconds for the STS-V and 4.6 seconds for the XLR-V, quarter miles of 13.5 seconds at 109 mph and 13.0 seconds at 111 mph respectively, and a 122-foot 60-0 mph braking distance for the XLR-V.6,6

Fact sheet · 2006 · United States

The numbers

2006 Cadillac V-Series: CTS-V, STS-V and XLR-V — The V-Series became a family: the CTS-V moved to the 6.0-liter LS2, and the supercharged STS-V sedan and XLR-V roadster joined it.

Coverage: Partial — researched sections are shown; missing ones are not yet sourced. Researched through 2026-09-23.

Every figure is labeled with how sure we are. Reported means a manufacturer, registry, or reference figure we cite but have not reconciled against factory records ourselves. Disputed means credible sources disagree and both are shown. Rows are separately scoped; don't add them together unless the note says they make up a total.

Key facts

  • STS-V: 469 hp at 6,400 rpm and 439 lb-ft at 3,800 rpm (GM Media, released 2005-08-01, as transcribed).1
  • XLR-V: 443 hp at 6,400 rpm and 414 lb-ft at 3,600 rpm, SAE certified (GM Media, released 2005-08-01, as transcribed).1
  • XLR-V colors, 2006: Black Raven 562, Light Platinum 299, Infrared 286 (total 1,147).3

Production

Color trim
What was countedCountBasisStatus
XLR-V, Black Raven with Shale interior3 XLR-V · 2-door retractable hardtop convertible · Bowling Green Assembly output 163 built, model-year Reported
XLR-V, Infrared with Shale interior3 XLR-V · 2-door retractable hardtop convertible · Bowling Green Assembly output 228 built, model-year Reported
XLR-V, Light Platinum with Shale interior3 XLR-V · 2-door retractable hardtop convertible · Bowling Green Assembly output 106 built, model-year Reported
XLR-V, Black Raven with Ebony interior3 XLR-V · 2-door retractable hardtop convertible · Bowling Green Assembly output 399 built, model-year Reported
XLR-V, Infrared with Ebony interior3 XLR-V · 2-door retractable hardtop convertible · Bowling Green Assembly output 58 built, model-year Reported
XLR-V, Light Platinum with Ebony interior3 XLR-V · 2-door retractable hardtop convertible · Bowling Green Assembly output 193 built, model-year Reported
Model
What was countedCountBasisStatus
CTS-V sedan2 CTS-V · 4-door sedan · LS2 6.0L V8 · 6-speed manual · not stated by source 1,201 built, model-year Reported
STS-V sedan2 STS-V · 4-door sedan · 4.4L supercharged Northstar V8 · 6-speed automatic · not stated by source 1,306 built, model-year Reported
XLR-V roadster2,3 XLR-V · 2-door retractable hardtop convertible · 4.4L supercharged Northstar V8 · 6-speed automatic · Bowling Green Assembly output Two presentations agree; both are enthusiast compilations and may share one lineage. 1,147 built, model-year Reported
Paint
What was countedCountBasisStatus
XLR-V, Black Raven3 XLR-V · roadster · Bowling Green Assembly output 562 built, model-year Reported
XLR-V, Infrared3 XLR-V · roadster · Bowling Green Assembly output 286 built, model-year Reported
XLR-V, Light Platinum3 XLR-V · roadster · Bowling Green Assembly output 299 built, model-year Reported

Cadillac V-Net states the list was obtained from Cadillac; market scope (US only or all markets) is not stated. Rows for different models are separately scoped. No whole-year V-Series total is shown here: the V-Net page gives no combined annual figure, and a total would have to be summed across separately scoped rows, which this record does not do. Searched 2026-09-29: the V-Net production page, its site-news post on the update and its forum threads; none states a US-only or all-markets scope. A GM or Cadillac statement of scope, or a published per-year V-Series total, would close it.

The three XLR-V color rows partition the 1,147 XLR-V total on the XLR Net page (562 + 286 + 299).

The XLR Net page's Shale and Ebony interior tables give XLR-V counts for each colour and interior combination; the six XLR-V combination rows reconcile to the three colour totals and to 1,147. Interior totals are shown as estimated sums of those rows (the page does not print them).

Prices when new

ModelPriceBasis
Base price, STS-V6 $77,090 base price as reported by MotorWeek, MotorWeek episode 2530
Price, XLR-V6 $100,000 price as reported by MotorWeek (a round figure), MotorWeek episode 2540

Prices are the nominal dollars of the day, not adjusted for inflation.

Engines

EngineFactory ratingAvailabilityBuilt
LS2 · 6.0-liter V8 (CTS-V)1 364 cu in · sequential fuel injection 400 hp @ 6,000, 395 lb-ft @ 4,400 (manufacturer rating as published by GM Media (SAE basis not stated in the transcription)) standard, CTS-V Not yet sourced
4.4-liter supercharged Northstar DOHC V8 (STS-V)1,6 267 cu in · Roots-type supercharger 469 hp @ 6,400, 439 lb-ft @ 3,800 (manufacturer rating as published by GM Media 2005-08-01 (SAE basis not stated on this page)) standard, STS-V Not yet sourced
4.4-liter supercharged Northstar DOHC V8 (XLR-V)1,6 267 cu in · Roots-type supercharger 443 hp @ 6,400, 414 lb-ft @ 3,600 (SAE certified) standard, XLR-V Not yet sourced

Ratings are the manufacturer's advertised figures under the standard shown (SAE gross before 1972, SAE net after). They are not dyno results, and gross and net ratings can't be compared directly.

Transmissions

TransmissionAvailabilityBuilt
Tremec T56 six-speed manual (CTS-V; sixth 0.57)1 standard, CTS-V Not yet sourced
Hydra-Matic 6L80 six-speed automatic (STS-V, XLR-V)1,1 standard, STS-V and XLR-V Not yet sourced

Options and packages

CodeOptionPriceInstalled
R6GRPO CTS-V: Sunroof delete4 — Not yet sourced
QKRRPO CTS-V: Tires, P245/45R18 W-rated, Goodyear Eagle EMT (run-flat)4 — Not yet sourced
WF2RPO CTS-V: Regular production accessory, Engine Appearance Package (carbon-fiber engine cover, carbon-fiber CRFM and carbon-fiber tower-to-tower brace; SPO-supplied, dealer-installed)4 — Not yet sourced
FG2RPO CTS-V: Regular production accessory, Performance Shock Absorber Package (SPO-supplied, dealer-installed)4 — Not yet sourced
K05RPO CTS-V and STS-V: Engine block heater4,5 — Not yet sourced
R6GRPO STS-V: Sunroof delete5 — Not yet sourced
FE9RPO CTS-V and STS-V: Emissions, Federal requirements4,5 — Not yet sourced
YF5RPO CTS-V and STS-V: Emissions, California state requirements4,5 — Not yet sourced
NE1RPO CTS-V and STS-V: Emissions, Maine, Massachusetts, New York or Vermont state requirements4,5 — Not yet sourced
NB8RPO CTS-V and STS-V: Emissions override, California, Massachusetts or New York4,5 — Not yet sourced
NC7RPO CTS-V and STS-V: Emissions override, Federal4,5 — Not yet sourced
QT8RPO XLR-V: Wheels, 19 x 8.5 in painted aluminum, Sterling Silver (standard) — Not yet sourced
UR2RPO XLR-V: AM/FM stereo with in-dash 6-disc CD changer and DVD navigation, Bose premium nine-speaker system (standard) — Not yet sourced

Paint

CodeColorBuilt
41U Black Raven (CTS-V; touch-up WA-8555)4 Not yet sourced
46U Stealth Gray (CTS-V; touch-up WA-928L)4 Not yet sourced
67U Light Platinum (CTS-V; touch-up WA-994L)4 Not yet sourced
80U Infrared (CTS-V, new for 2006; touch-up WA-301N)4 Not yet sourced
41U Black Raven (STS-V; touch-up WA-8555)5 Not yet sourced
46U Stealth Gray (STS-V; touch-up WA-928L)5 Not yet sourced
67U Light Platinum (STS-V; touch-up WA-994L)5 Not yet sourced
41U Black Raven (XLR-V)3 5623 Reported
80U Infrared (XLR-V)3 2863 Reported
67U Light Platinum (XLR-V)3 2993 Reported

Color names are the factory's. We don't show color swatches, because a screen color is no guide for a restoration.

Interiors

CodeTrimBuilt
135 CTS-V: Light Gray, full leather seating with sueded fabric inserts, front buckets (AQ9)4 Not yet sourced
195 CTS-V: Ebony, full leather seating with sueded fabric inserts, front buckets (AQ9)4 Not yet sourced
315 CTS-V: Light Cashmere, full leather seating with sueded fabric inserts, front buckets (AQ9)4 Not yet sourced
194 STS-V: Ebony, full-leather Nuance seats with perforated "Preferred Suede" inserts, front buckets (AQ9)5 Not yet sourced
134 STS-V: Light Gray, full-leather Nuance seats with perforated "Preferred Suede" inserts, front buckets (AQ9)5 Not yet sourced
674 STS-V: Ebony / Tango Red, full-leather Nuance seats with perforated "Preferred Suede" inserts, front buckets (AQ9)5 Not yet sourced
183 XLR-V: Shale/Ebony, full Nuance leather seats with perforated sueded fabric inserts (plant code 18I, Shale)3 4973 Estimate
193 XLR-V: Ebony, full Nuance leather seats with perforated sueded fabric inserts (plant code 19I)3 6503 Estimate

Specifications

MeasureValueApplies to
Final drive ratio, CTS-V1 3.73 :1 CTS-V
Final drive ratio, STS-V1 3.23 :1 STS-V
Final drive ratio, XLR-V1 2.56 :1 XLR-V
Wheelbase, CTS-V1 113.4 in CTS-V
Wheelbase, STS-V1 116.4 in STS-V
Wheelbase, XLR-V1 105.7 in XLR-V
Curb weight, CTS-V1 3,850 lb CTS-V
Curb weight, STS-V1 4,294.6 lb STS-V
Curb weight, XLR-V1 3,804 lb XLR-V (estimated on source)
Tires, STS-V1 P255/45R18 front, P275/40R19 rear, Pirelli extended mobility STS-V
Tires, XLR-V1 P235/45R19 front, P255/40R19 rear, Pirelli run-flat XLR-V

Period road tests

TestCar testedResult
MotorWeek, episode 253060-60 mph STS-V, supercharged 4.4L, 6-speed automatic 4.8 s
MotorWeek, episode 25306quarter mile STS-V, supercharged 4.4L, 6-speed automatic 13.5 s at 109 mph
MotorWeek, episode 254060-60 mph XLR-V, supercharged 4.4L, 6L80 6-speed automatic 4.6 s
MotorWeek, episode 25406quarter mile XLR-V, supercharged 4.4L, 6L80 6-speed automatic 13.0 s at 111 mph
MotorWeek, episode 2540660-0 mph braking XLR-V, supercharged 4.4L, 6L80 6-speed automatic 122 ft

A road test result belongs to the one car that was tested, with its engine, gearing, tires, and conditions. It is not a figure for every car of the year.

Identification

Model codes
CTS-V 6DN69; STS-V 6DX29 (GMX295); XLR-V 6YX67.2
Order-guide RPO codes, CTS-V
The 2006 CTS-V order guide (model 6DN69, PEG 1SA) lists LS2 (6.0L V8 SFI), M12 (Tremec six-speed manual), GT4 (3.73 rear axle), J56 (14-inch Brembo brakes), IL5 (V-Series badging), P32 wheels, CF5 power sunroof and R8E gas guzzler tax.4
Order-guide RPO codes, STS-V
The 2006 STS-V order guide (model 6DX29, PEG 1SA) lists LC3 (supercharged 4.4L DOHC Northstar V8 with variable valve timing), MYC (six-speed automatic), GU5 (3.23 rear axle), G80 (limited-slip differential), J56 (14-inch Brembo four-piston brakes), Q20 (18 x 8.5 in front, 19 x 9.5 in rear ten-spoke Pearl Nickel wheels), Q19 (P255/45R18 front, P275/40R19 rear W-rated EMT tires), T43 (V-Series decklid spoiler), NV7 (ZF premium steering gear) and YQ4 (Bose 5.1 Studio Surround with 6-disc DVD changer).5

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Identification

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Same model year

Also in 2006

  • Chevrolet Monte Carlo SS SS gets a 5.3-litre V8 with Displacement on Demand: 303 hp, 8,794 SS built per Wikipedia.
  • Chrysler 300 SRT The 300C SRT8 in its first full US model year: 425 hp from the 6.1 SRT HEMI, Brembo brakes, 20-inch forged wheels and a new Silver Steel colour.
  • Dodge Charger The name returns on a four-door, rear-drive Brampton sedan: V-6 SE and SXT, a 340-hp HEMI R/T, a numbered Daytona R/T in heritage colours, and the 425-hp SRT8.
  • Dodge Magnum SRT8 The 425-hp SRT HEMI in a Brampton-built wagon with 71.6 cubic feet of cargo space, priced at $37,995 including destination.
  • Pontiac GTO The final GTO year: 13,948 built before the last car left the Australian line on June 14, 2006.
  • Pontiac Grand Prix GXP LS4 V8 and supercharged V6 continue.