Cadillac STS first generation

Photo: IFCAR / Wikimedia Commons · Public domain

The Cadillac STS first generation (2005–2011): dimensions, weights, reliability and the official figures of its 29 versions in the European Union, the United Kingdom, the United States, and Canada.

Model codes: Sigma

Dimensions, weights and capacity

Specification	Europe	North America	Wikipedia
Dimensions
Length	4,990 mm RDW	4,990 mm TC	4,986–5,093 mm
Width	1,840 mm RDW	1,840 mm TC	1,844 mm
Height	1,460–1,480 mm RDW	1,460 mm TC	1,463–1,478 mm
Wheelbase	2,960 mm RDW	2,950 mm TC	2,957–3,056 mm
Front track	1,568–1,596 mm ASTRA	1,570 mm TC	–
Rear track	1,571–1,596 mm ASTRA	1,580 mm TC	–
Weights and towing
Kerb weight	1,757–1,869 kg RDW	1,802–1,871 kg TC	1,750–1,800 kg
Mass in running order	1,857–1,969 kg RDW	–	–
Gross vehicle weight	2,439 kg RDW	–	–
Towing, braked trailer	1,928 kg RDW	–	–
Towing, unbraked trailer	454 kg RDW	–	–
Seats and space
Seats	5 RDW	–	–
Doors	4 RDW	–	–
Boot space	–	–	464 L
Luggage space (EPA)	–	368–396 L EPA	–
Passenger space (EPA)	–	2,888–2,945 L EPA	–
Fuel tank	–	–	66 L
Performance
Top speed	225–250 km/h RDW	–	–
Torque	342–595 Nm ASTRA	–	342–595 Nm

Tyre sizes (most common first): 255/45R18

Ranges cover the generation’s versions and body styles; European and North American versions can differ. Sources: RDW type approvals (Netherlands), Transport Canada vehicle specifications, Wikipedia (en, fr, pl), ASTRA type approvals (Switzerland), US EPA fuel economy data. Wikipedia figures are used under CC BY-SA 4.0.

Reliability and owner reports

Owner complaints to NHTSA (US)

367 complaints for model years 2005–2011. 45 crashes · 12 fires · 31 injuries

Airbags 93
Electrical system 61
Engine 56
Fuel system 31
Transmission and drivetrain 30
Stability control 21

Complaints are reported by owners and not checked by NHTSA; they are not adjusted for how many cars were sold, so popular models have more. NHTSA owner complaints

All 29 versions of the Cadillac STS first generation

Show all 29 versions

European Union 2 versions

New cars registered in the EU (plus Norway and Iceland), from the European Environment Agency. Figures on the NEDC procedure until 2020 and on WLTP from 2021; versions are grouped by engine and power, with their number of registrations.

Years and version	Engine	Fuel	CO₂	EU registrations
2010	4.6 L	Petrol	338 g/km	38
2010	3.6 L	Petrol	274 g/km	32

United Kingdom 5 versions

New cars on sale in the UK, from the Vehicle Certification Agency. NEDC figures until 2018 and WLTP figures after; years are the editions a version appeared in.

Years and version	Engine	Fuel	Gearbox	Consumption (combined)	CO₂
2008–20103.6 V6	3.6 L	Petrol	6-speed automatic	10.9 L/100 km NEDC	258 g/km
2008–20104.6 V8	4.6 L	Petrol	6-speed automatic	13.2 L/100 km NEDC	314 g/km
2006–20083.6 - V6 AUT · 3.6 V6	3.6 L	Petrol	5-speed automatic	12.4 L/100 km NEDC	295 g/km
2006–20074.4 - V8 AUT	4.4 L	Petrol	6-speed automatic	15.6–15.9 L/100 km NEDC	370–379 g/km
2006–20074.6 - V8 AUT	4.6 L	Petrol	5-speed automatic	14.4 L/100 km NEDC	343 g/km

United States 17 versions

Model years sold in the USA, from the EPA and the Department of Energy (fueleconomy.gov). MPG on the EPA test; litres per 100 km = 235.215 ÷ MPG.

Years and version	Engine	Fuel	Gearbox	Drive	Consumption (combined)	CO₂
2010–2011SIDI	3.6 L	Petrol	6-speed automatic	Rear-wheel drive	21 MPG (11.2 L/100 km) EPA	263 g/km
2011SIDI	3.6 L	Petrol	6-speed automatic	All-wheel drive	21 MPG (11.2 L/100 km) EPA	263 g/km
2010	3.6 L	Petrol	6-speed automatic	All-wheel drive	21 MPG (11.2 L/100 km) EPA	263 g/km
2007–20103MODE CLKUP · CLKUP	4.6 L	Petrol	6-speed automatic	Rear-wheel drive	18 MPG (13.1 L/100 km) EPA	307 g/km
2010	4.6 L	Petrol	6-speed automatic	All-wheel drive	17 MPG (13.8 L/100 km) EPA	325 g/km
2008–2009DIRECTINJ, CLKUP · DI, CLKUP	3.6 L	Petrol	6-speed automatic	Rear-wheel drive	20 MPG (11.8 L/100 km) EPA	276 g/km
2008–2009DIRECTINJ, 3MODE CLKUP · DI, CLKUP	3.6 L	Petrol	6-speed automatic	Four- or all-wheel drive	20 MPG (11.8 L/100 km) EPA	276 g/km
2008–2009CLKUP	4.4 L	Petrol	6-speed automatic	Rear-wheel drive	15 MPG (15.7 L/100 km) EPA	368 g/km
2009CLKUP	4.6 L	Petrol	6-speed automatic	Four- or all-wheel drive	17 MPG (13.8 L/100 km) EPA	325 g/km
2007–20083MODE CLKUP · CLKUP	4.6 L	Petrol	6-speed automatic	Four- or all-wheel drive	16 MPG (14.7 L/100 km) EPA	345 g/km
2006–2007CLKUP · 3MODE CLKUP	3.6 L	Petrol	5-speed automatic	Rear-wheel drive	19 MPG (12.4 L/100 km) EPA	291 g/km
20073MODE CLKUP	3.6 L	Petrol	5-speed automatic	Four- or all-wheel drive	18 MPG (13.1 L/100 km) EPA	307 g/km
2006–20073MODE CLKUP	4.4 L	Petrol	6-speed automatic	Rear-wheel drive	14–15 MPG (15.7–16.8 L/100 km) EPA	368–394 g/km
2006CLKUP	3.6 L	Petrol	5-speed automatic	Four- or all-wheel drive	18 MPG (13.1 L/100 km) EPA	307 g/km
2005–2006CLKUP	4.6 L	Petrol	5-speed automatic	Four- or all-wheel drive	17 MPG (13.8 L/100 km) EPA	325 g/km
2005–2006CLKUP	4.6 L	Petrol	5-speed automatic	Rear-wheel drive	18 MPG (13.1 L/100 km) EPA	307 g/km
2005CLKUP	3.6 L	Petrol	5-speed automatic	Rear-wheel drive	18 MPG (13.1 L/100 km) EPA	307 g/km

Canada 5 versions

Model years sold in Canada, from Natural Resources Canada fuel consumption ratings (5-cycle test).

Years and version	Engine	Fuel	Gearbox	Consumption (combined)	CO₂
2008–2011Mid-size	3.6 L	Petrol	6-speed automatic	10.8–11.7 L/100 km 5-cycle	248–269 g/km
2007–2010Mid-size	4.6 L	Petrol	6-speed automatic	13.0–14.4 L/100 km 5-cycle	299–331 g/km
2007–2009Mid-size	4.4 L	Petrol	6-speed automatic	15.5–16.1 L/100 km 5-cycle	357–370 g/km
2005–2007Mid-size	3.6 L	Petrol	5-speed automatic	12.5–13.4 L/100 km 5-cycle	288–308 g/km
2005–2006Mid-size	4.6 L	Petrol	5-speed automatic	13.2–14.8 L/100 km 5-cycle	304–340 g/km

Similar models from other brands

Official figures are measured on standard test procedures and differ between markets. Your consumption depends on how, where and in what conditions you drive.