Cadillac OPTIQ Fuel Economy (MPG)

Name: Cadillac OPTIQ MPG & Fuel Economy
Creator: AutoSpecData
License: https://creativecommons.org/licenses/by/4.0/

What is the real-world gas mileage of a 2027 Cadillac OPTIQ?

The 2027 Cadillac OPTIQ gets up to 105 MPG combined (117 city / 93 highway) in EPA testing.

Latest model year (2027):

The Cadillac OPTIQ gets up to 105 MPG combined (117 city / 93 highway) in the Auto (A1) trim.

Verifiedfueleconomy.gov · Verified August 11, 2026

Overview MPG Engine Specs Fuel Cost Transmission Drivetrain Vehicle Class Maintenance Dimensions Curb Weight EV Range

Cadillac OPTIQ MPG — All Years

Year	Trim	Engine	Fuel	City (MPG)	Hwy (MPG)	Combined (MPG)
2027Config 1 of 6	Auto (A1)	—	Electricity	117	93	105
2027Config 2 of 6	Auto (A1)	—	Electricity	117	93	105
2027Config 3 of 6	Auto (A1)	—	Electricity	92	74	83
2027Config 4 of 6	Auto (A1)	—	Electricity	103	81	92
2027Config 5 of 6	Auto (A1)	—	Electricity	110	88	99
2027Config 6 of 6	Auto (A1)	—	Electricity	110	88	99
2026Config 1 of 6	Auto (A1)	—	Electricity	92	74	83
2026Config 2 of 6	Auto (A1)	—	Electricity	103	81	92
2026Config 3 of 6	Auto (A1)	—	Electricity	110	88	99
2026Config 4 of 6	Auto (A1)	—	Electricity	110	88	99
2026Config 5 of 6	Auto (A1)	—	Electricity	117	93	105
2026Config 6 of 6	Auto (A1)	—	Electricity	117	93	105

Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.

Cadillac OPTIQ data analysis

How Cadillac OPTIQ combined fuel economy varies

Across 12 configurations recorded for the 2026 through 2027 Cadillac OPTIQ, combined fuel economy runs from 83 MPG to 105 MPG. The strongest figure belongs to the 2026 Cadillac OPTIQ (Auto (A1)) at 105 MPG, and the weakest to the 2027 car (Auto (A1)) at 83 MPG — a spread of 27%. A gap that wide means the model year and configuration you buy matter more than the nameplate does: quoting a single number for the Cadillac OPTIQ would be misleading.

What changed for 2027

Average combined fuel economy for the 2027 Cadillac OPTIQ is 97.2 MPG, against 97.2 MPG for the 2026 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.

How to read this Cadillac OPTIQ data

This page lists every 2026 through 2027 Cadillac OPTIQ record we hold for this measurement — 12 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.

Configurations behind these Cadillac OPTIQ numbers

The 2026 through 2027 Cadillac OPTIQ entries here span 2 model years of published measurements for this figure. 2027 is the busiest model year in the record with 6 separate measured configurations, which is why a single quoted combined fuel economy figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.

Where these Cadillac OPTIQ figures come from

Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The Cadillac OPTIQ record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.

Official Factory Specs vs. AutoSpecData Expert Benchmarks

The EPA highway loop never holds interstate speed. Here is what the same engine does when you sit on the cruise control.

Cruise speed	EPA highway spec	AutoSpecData adjusted MPG	Fuel you lose
60 mph	93 MPG	93 MPG	0%
65 mph	93 MPG	84.9 MPG	9%
70 mph	93 MPG	77.6 MPG	17%
75 mph	93 MPG	71 MPG	24%
80 mph	93 MPG	65.1 MPG	30%

Our Real-World Speed MPG Adjuster re-scales the Cadillac OPTIQ EPA highway result with a quadratic drag term (mpg = hwy ÷ (1 + k·(v² − 60²)/60²), k = 0.55 for trucks, SUVs and vans, 0.42 for cars). Wind, roof racks, and a heavy right foot make it worse, never better.

Frequently Asked Questions About OPTIQ MPG

What is the MPG of the Cadillac OPTIQ?

The Cadillac OPTIQ gets up to 105 MPG combined (117 city / 93 highway) in the 2027 model year. Fuel economy varies by engine and trim — see the full table above for details.

Which Cadillac OPTIQ trim has the best fuel economy?

The Auto (A1) trim offers the best combined fuel economy at 105 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.