2015 Cadillac ELR — Full Specifications
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Running gear matters most — before anything else, UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero for this car's fitment.
The 2015 Cadillac ELR is a coupe powered by a 1.4L 4-cyl premium gasoline engine. It returns around 40 mpg (UK) / 33 mpg (US EPA) combined. Owners often keep a Cadillac ELR workshop manual to hand for servicing and repairs.
Compared with the 2014 Cadillac ELR: Fuel economy is essentially unchanged at around 40 mpg (UK) combined. The engine line-up listed by EPA is unchanged.
Full Specifications
| Engine | 1.4L 4-cyl |
|---|---|
| Transmission | Automatic (variable gear ratios) |
| Fuel Type | Premium Gasoline |
| Powertrain | Plug-in Hybrid |
| Drive | Front-Wheel Drive |
| Body Style | Coupe |
| Passenger Volume (EPA) | 83 cu ft (2,350 L) |
| Luggage Volume (EPA) | 11 cu ft (311 L) |
| Fuel Economy (UK) | 40 combined / 37 urban / 42 extra-urban mpg |
| Fuel Economy (US EPA) | 33 combined / 31 city / 35 highway mpg |
| CO₂ Emissions | 57 g/km |
| EPA Greenhouse Gas Score | 10 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $2,500 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 1 configuration for the 2015 Cadillac ELR, all with the 1.4L 4-cyl engine. 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 |
|---|---|---|---|---|---|---|
| 1.4L 4-cyl (Plug-in Hybrid) | Automatic (variable gear ratios) | Front-Wheel Drive | 40 | 33 (31/35) | 57 | $2,500 |
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 83 cubic feet (about 2,350 litres) and luggage volume at 11 cubic feet (about 311 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2015 Cadillac ELR
Running Costs: 2015 Cadillac ELR
Covering around 8,000 miles a year in a 2015 Cadillac ELR at 40 mpg combined, expect roughly 909 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,500 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.
2015 Cadillac ELR 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.
How It Compares
How does the Cadillac ELR compare to similar coupes? For context, coupes in our database average around 25 mpg (UK) combined — this model's 40 mpg figure is 15 mpg better than that average. Its 57 g/km CO₂ figure is 221 g/km lower than the 278 g/km average for coupes on this site. This comparison is based on 1072 coupes in our dataset.
Cadillac models in our database average about 27 mpg (UK) combined on their most efficient configuration; the 2015 Cadillac ELR's 40 mpg is 13 mpg above that make average. Its 57 g/km CO₂ figure is 191 g/km lower than the 248 g/km Cadillac average.
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 2015 Cadillac ELR
Frequently Asked Questions
What engine does the 2015 Cadillac ELR have?
It's fitted with a 1.4L 4-cyl premium gasoline engine, paired with a automatic (variable gear ratios) transmission.
What is the fuel economy of the 2015 Cadillac ELR?
The most efficient configuration returns around 40 mpg (UK) combined, or 33 mpg on the US EPA cycle.
How much does the 2015 Cadillac ELR cost to fuel per year?
The US EPA estimates about $2,500 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.
How much interior and luggage space does the 2015 Cadillac ELR have?
EPA measures interior passenger volume at 83 cubic feet (about 2,350 litres) and luggage volume at 11 cubic feet (about 311 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.
Is the Cadillac ELR's fuel economy good for a coupe?
Yes — it returns around 40 mpg (UK) combined, against a same-body-style average of roughly 25 mpg among the coupes we track, making it one of the more efficient options in its class.