2011 Buick Regal — Full Specifications
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The 2011 Buick Regal is a saloon/sedan offered with 2 engines (2L 4-cyl turbo, 2.4L 4-cyl). Its most fuel-efficient configuration returns around 29 mpg (UK) / 24 mpg (US EPA) combined, with 25–29 mpg (UK) across all configurations. Owners often keep a Buick Regal workshop manual to hand for servicing and repairs.
Full Specifications
| Engine (most efficient) | 2L 4-cyl turbo |
|---|---|
| Engine options | 2L 4-cyl turbo · 2.4L 4-cyl |
| Transmission (most efficient) | Manual 6-spd |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | Saloon/Sedan |
| Passenger Volume (EPA) | 98 cu ft (2,775 L) |
| Luggage Volume (EPA) | 13 cu ft (368 L) |
| Fuel Economy (UK) | 29 combined / 24 urban / 37 extra-urban mpg |
| Fuel Economy (US EPA) | 24 combined / 20 city / 31 highway mpg |
| CO₂ Emissions | 230 g/km |
| EPA Est. Annual Fuel Cost | $2,800 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 3 configurations for the 2011 Buick Regal across 2 engines (2L 4-cyl turbo, 2.4L 4-cyl). Combined fuel economy ranges from 21 to 24 mpg (US), or 25 to 29 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 2L 4-cyl turbo | Automatic (S6) | Front-Wheel Drive | 25 | 21 (18/28) | 263 | $3,200 |
| 2L 4-cyl turbo | Manual 6-spd | Front-Wheel Drive | 29 | 24 (20/31) | 230 | $2,800 |
| 2.4L 4-cyl | Automatic (S6) | Front-Wheel Drive | 28 | 23 (19/30) | 240 | $2,900 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 98 cubic feet (about 2,775 litres) and luggage volume at 13 cubic feet (about 368 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2011 Buick Regal
Running Costs: 2011 Buick Regal
Covering around 8,000 miles a year in a 2011 Buick Regal at 29 mpg combined, expect roughly 1,254 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,800 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Only need this car occasionally? See our buy vs rent comparison.
2011 Buick Regal Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
Recalls & Owner Complaints (NHTSA)
NHTSA lists 4 safety recall campaigns that include the 2011 Buick Regal (as of 6 October 2026). Most affected areas: Electrical system (2), Seats (1), Exterior lighting (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Electrical system — campaign 16V517000, reported 7 July 2016. Risk: Chafed harness wires may cause a short circuit, increasing the risk of a fire.
- Electrical system — campaign 16V502000, reported 5 July 2016. Risk: If the key is removed without the transmission in PARK, the vehicle may rollaway as occupants are exiting, increasing the risk of injury.
- Seats — campaign 14V447000, reported 23 July 2014. Risk: If the driver's seat unexpectedly drops, the distraction and altered seat position may affect the drivers' control of the vehicle, increasing the risk of a crash.
- Exterior lighting — campaign 12V484000, reported 4 October 2012. Risk: If the driver is not aware that a turn signal is not functioning properly, the driver may continue to drive the vehicle. If half of a front turn signal is not illuminating, other driver's may not be aware that…
Owners have filed 280 complaints with NHTSA about the 2011 Buick Regal. The most-reported areas are Engine (108), Electrical system (75), Power train (39). Complaints include 7 reported crashes, 7 reported fires, 7 reported injuries. That is well above the median of 36 complaints across the 10 Buick Regal model years in our data.
Used-buyer checklist for the 2011 Buick Regal
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Engine (108 owner complaints) — Listen for unusual noise on a cold start, check for warning lights and ask for the service records.
- Electrical system (2 recall campaigns · 75 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Lighting (1 recall campaign · 38 owner complaints) — Check every exterior light works and look for moisture inside the lamp housings.
- Transmission & drivetrain (39 owner complaints) — On the test drive, watch for hesitation, jerking or slipping between gears and ask for transmission service history.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
At 29 mpg (UK) combined it sits close to the 29 mpg average for Buick models in our database.
Of the 10 Buick Regal model years we cover, the 2011 ranks 4th for combined fuel economy on its best configuration (29 mpg UK combined, against a high of 31 mpg). See every Buick Regal year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2011 Buick Regal
Frequently Asked Questions
What engine does the 2011 Buick Regal have?
EPA lists 2 engines for the 2011 Buick Regal: 2L 4-cyl turbo, 2.4L 4-cyl. The most fuel-efficient configuration pairs the 2L 4-cyl turbo with a manual 6-spd.
What is the fuel economy of the 2011 Buick Regal?
The most efficient configuration returns around 29 mpg (UK) combined, or 24 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 25 to 29 mpg.
How much does the 2011 Buick Regal cost to fuel per year?
The US EPA estimates about $2,800 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2011 Buick Regal have any recalls?
NHTSA lists 4 safety recall campaigns that include the 2011 Buick Regal (as of 6 October 2026). Most affected areas: Electrical system (2), Seats (1), Exterior lighting (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2011 Buick Regal?
Among the 280 owner complaints filed with NHTSA, the most-reported areas are Engine (108 complaints), Electrical system (75 complaints), Power train (39 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2011 Buick Regal have?
EPA measures interior passenger volume at 98 cubic feet (about 2,775 litres) and luggage volume at 13 cubic feet (about 368 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.