Cadillac

Cadillac STS

Cadillac STS
Photo: IFCAR / Wikimedia Commons · Public domain

The official data lists 48 versions of the Cadillac STS (2000–2011), in the European Union, the United Kingdom, the United States, and Canada. Each market publishes its own figures, measured on its own test procedure.

At a glance

Years in the data
2000–2011
Markets
European Union, United Kingdom, United States, Canada
Engines
3.6 L to 4.6 L
Fuels
Petrol
Lowest consumption (Canada)
10.8 L/100 km (5-cycle)
Lowest consumption (United Kingdom)
10.9 L/100 km (NEDC)
Lowest consumption (United States)
11.2 L/100 km (EPA)
New registrations in the EU
70

What is the Cadillac STS?

The STS is a four-door luxury sedan. Its name stands for Seville Touring Sedan, connecting it to Cadillac’s Seville line. It brought a more modern, rear-wheel-drive format to the sedan range, with petrol V6 and V8 engine options.

Generation and engines

The STS had one generation, spanning 2005–2011. US and Canadian figures cover petrol engines from 3.6 L to 4.6 L. UK figures cover the same engine-size range, while EU registration figures for 2010 list 3.6 L and 4.6 L petrol versions.

How economical is the Cadillac STS?

The lowest listed US consumption is 11.2 L/100 km, and the best combined EPA rating is 21 MPG. Canada’s lowest listed figure is 10.8 L/100 km on the 5-cycle test. The UK VCA figure is 10.9 L/100 km on NEDC. Test procedures differ by market: Europe uses WLTP or NEDC, the US uses EPA testing, and Canada uses the 5-cycle test. EU registrations record 70 STS cars in 2010: 38 with the 4.6 L petrol engine and 32 with the 3.6 L.

Where was the STS sold?

The STS appears in US and Canadian figures from 2005–2011, in UK VCA figures from 2000–2010, and in EU registration figures for 2010.

Questions and answers

What does STS stand for?

Seville Touring Sedan.

What engines were listed for the STS?

Petrol engines from 3.6 L to 4.6 L appear in UK, US and Canadian figures.

What is the lowest listed STS consumption in US figures?

11.2 L/100 km on the EPA test, with a best combined rating of 21 MPG.

STS first generation (2005–2011)

Cadillac STS first generation
Photo: IFCAR / Wikimedia Commons · Public domain

Model codes: Sigma · References: en.wikipedia.org, cars.com

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 versionEngineFuelCO₂EU registrations
20104.6 LPetrol338 g/km38
20103.6 LPetrol274 g/km32

United Kingdom 6 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 versionEngineFuelGearboxConsumption (combined)CO₂
2008–20103.6 V63.6 LPetrol6-speed automatic10.9 L/100 km NEDC258 g/km
2008–20104.6 V84.6 LPetrol6-speed automatic13.2 L/100 km NEDC314 g/km
2006–20083.6 - V6 AUT · 3.6 V63.6 LPetrol5-speed automatic12.4 L/100 km NEDC295 g/km
2006–20074.4 - V8 AUT4.4 LPetrol6-speed automatic15.6 L/100 km NEDC370 g/km
20074.4 - V8 AUT4.4 LPetrol6-speed automatic15.9 L/100 km NEDC379 g/km
2006–20074.6 - V8 AUT4.6 LPetrol5-speed automatic14.4 L/100 km NEDC343 g/km

United States 19 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 versionEngineFuelGearboxDriveConsumption (combined)CO₂
2010–2011SIDI3.6 LPetrol6-speed automaticRear-wheel drive21 MPG (11.2 L/100 km) EPA263 g/km
2011SIDI3.6 LPetrol6-speed automaticAll-wheel drive21 MPG (11.2 L/100 km) EPA263 g/km
20103.6 LPetrol6-speed automaticAll-wheel drive21 MPG (11.2 L/100 km) EPA263 g/km
2007–20103MODE CLKUP · CLKUP4.6 LPetrol6-speed automaticRear-wheel drive18 MPG (13.1 L/100 km) EPA307 g/km
20104.6 LPetrol6-speed automaticAll-wheel drive17 MPG (13.8 L/100 km) EPA325 g/km
2008–2009DIRECTINJ, CLKUP · DI, CLKUP3.6 LPetrol6-speed automaticRear-wheel drive20 MPG (11.8 L/100 km) EPA276 g/km
2008–2009DIRECTINJ, 3MODE CLKUP · DI, CLKUP3.6 LPetrol6-speed automaticFour- or all-wheel drive20 MPG (11.8 L/100 km) EPA276 g/km
2008–2009CLKUP4.4 LPetrol6-speed automaticRear-wheel drive15 MPG (15.7 L/100 km) EPA368 g/km
2009CLKUP4.6 LPetrol6-speed automaticFour- or all-wheel drive17 MPG (13.8 L/100 km) EPA325 g/km
2007–20083MODE CLKUP · CLKUP4.6 LPetrol6-speed automaticFour- or all-wheel drive16 MPG (14.7 L/100 km) EPA345 g/km
2006–2007CLKUP · 3MODE CLKUP3.6 LPetrol5-speed automaticRear-wheel drive19 MPG (12.4 L/100 km) EPA291 g/km
20073MODE CLKUP3.6 LPetrol5-speed automaticFour- or all-wheel drive18 MPG (13.1 L/100 km) EPA307 g/km
20073MODE CLKUP4.4 LPetrol6-speed automaticRear-wheel drive15 MPG (15.7 L/100 km) EPA368 g/km
2006CLKUP3.6 LPetrol5-speed automaticFour- or all-wheel drive18 MPG (13.1 L/100 km) EPA307 g/km
20063MODE CLKUP4.4 LPetrol6-speed automaticRear-wheel drive14 MPG (16.8 L/100 km) EPA394 g/km
2005–2006CLKUP4.6 LPetrol5-speed automaticFour- or all-wheel drive17 MPG (13.8 L/100 km) EPA325 g/km
2006CLKUP4.6 LPetrol5-speed automaticRear-wheel drive18 MPG (13.1 L/100 km) EPA307 g/km
2005CLKUP3.6 LPetrol5-speed automaticRear-wheel drive18 MPG (13.1 L/100 km) EPA307 g/km
2005CLKUP4.6 LPetrol5-speed automaticRear-wheel drive18 MPG (13.1 L/100 km) EPA307 g/km

Canada 18 versions

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

Years and versionEngineFuelGearboxConsumption (combined)CO₂
2010–2011Mid-size3.6 LPetrol6-speed automatic10.8 L/100 km 5-cycle248 g/km
2010–2011Mid-size3.6 LPetrol6-speed automatic11.2 L/100 km 5-cycle258 g/km
2007–2010Mid-size4.6 LPetrol6-speed automatic13.0 L/100 km 5-cycle299 g/km
2009–2010Mid-size4.6 LPetrol6-speed automatic13.6 L/100 km 5-cycle313 g/km
2008–2009Mid-size3.6 LPetrol6-speed automatic11.6 L/100 km 5-cycle267 g/km
2008–2009Mid-size3.6 LPetrol6-speed automatic11.7 L/100 km 5-cycle269 g/km
2008–2009Mid-size4.4 LPetrol6-speed automatic15.5 L/100 km 5-cycle357 g/km
2008Mid-size4.6 LPetrol6-speed automatic14.4 L/100 km 5-cycle331 g/km
2006–2007Mid-size3.6 LPetrol5-speed automatic13.1 L/100 km 5-cycle301 g/km
2007Mid-size3.6 LPetrol5-speed automatic12.5 L/100 km 5-cycle288 g/km
2007Mid-size4.4 LPetrol6-speed automatic16.1 L/100 km 5-cycle370 g/km
2007Mid-size4.6 LPetrol6-speed automatic14.4 L/100 km 5-cycle331 g/km
2006Mid-size3.6 LPetrol5-speed automatic12.7 L/100 km 5-cycle292 g/km
2006Mid-size4.6 LPetrol5-speed automatic13.2 L/100 km 5-cycle304 g/km
2006Mid-size4.6 LPetrol5-speed automatic13.9 L/100 km 5-cycle320 g/km
2005Mid-size3.6 LPetrol5-speed automatic13.4 L/100 km 5-cycle308 g/km
2005Mid-size4.6 LPetrol5-speed automatic13.3 L/100 km 5-cycle306 g/km
2005Mid-size4.6 LPetrol5-speed automatic14.8 L/100 km 5-cycle340 g/km

Versions outside these generations

United Kingdom 3 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 versionEngineFuelGearboxConsumption (combined)CO₂
2001–20044.6L V8 (LD8)4.6 LPetrol4-speed automatic13.2 L/100 km NEDC313 g/km
2001–20044.6L V8 (LS7)4.6 LPetrol4-speed automatic13.9 L/100 km NEDC330 g/km
20004.6I V84.6 LPetrol4-speed automatic14.2 L/100 km NEDC330 g/km

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