Cadillac Vehicle Models & Specifications

20 models with verified fuel economy and engine specifications

Cadillac data pages by model

Jump straight to service intervals and specification data for any Cadillac model.

Cadillac maintenance schedules

For manufacturer-based service intervals and maintenance schedules by model, see MaintenanceSpec.

Cadillac maintenance schedules

About Cadillac specifications on AutoSpecData

This hub indexes every Cadillac model line we hold verified data for — 20 nameplates covering 388 distinct trim and powertrain combinations across model years 2015 to 2027. That works out to roughly 19 variants per model line, which is why picking the exact year and engine matters when you compare fuel economy: two Cadillac vehicles wearing the same badge in the same year can differ by several MPG depending on drivetrain and transmission.

The deepest Cadillac coverage sits with the CT4 (52 variants, 2020–2026), the CT5 (52 variants, 2020–2026) and the XT5 (50 variants, 2017–2026). 8 Cadillac models are still current as of 2027, while 12 lines have been discontinued or renamed — those stay published because used buyers and owners still look up their MPG, engine, and service data.

Every Cadillac model page below breaks its data into five focused views: fuel economy (EPA city, highway, and combined MPG plus estimated annual fuel cost), engine specifications (displacement, cylinder count, fuel type, and forced induction where applicable), transmission, drivetrain, and vehicle class. Where a Cadillac model is rated for towing or has published bed and cargo dimensions, those figures appear on the model page too. Figures come from the EPA and Department of Energy fueleconomy.gov datasets and are cross-checked against NHTSA vPIC records; blank fields mean the source data does not publish that value for that trim, not that the value is zero.

If you are cross-shopping, start with the model you already have in mind, note the combined MPG for the specific year and drivetrain, then use the comparison tool to put it side by side against a rival. Annual fuel cost is usually the number that separates two otherwise similar Cadillac trims over a five-year ownership window.

Cadillac specs: common questions

How many Cadillac models are covered here?

20 Cadillac model lines are covered, spanning 388 individual trim and powertrain combinations from model years 2015 through 2027. Each model page breaks those trims out year by year with EPA city, highway, and combined MPG, engine displacement, cylinder count, transmission, and drivetrain.

Which Cadillac model has the most trim data?

The Cadillac CT4 has the deepest coverage with 52 recorded variants between 2020 and 2026. Model lines with more variants usually offered several engines, drivetrains, or transmission choices in the same year, so comparing trims within a single year matters more than comparing across years.

What model years of Cadillac vehicles are included?

Coverage runs from 2015 to 2027. The longest-running entry is the Cadillac ATS (from 2015), and the most recently updated is the Cadillac LYRIQ (through 2027). Older years are included because used-car shoppers and owners looking up maintenance intervals need them as much as new-car buyers do.

Where does the Cadillac data come from?

Fuel economy, engine, transmission, drivetrain, and vehicle-class fields come from the US EPA and Department of Energy fueleconomy.gov datasets, with vehicle identification cross-checked against the NHTSA vPIC database. Nothing is estimated by us: if a figure is missing for a given Cadillac trim, the field is left blank rather than filled with a guess.

Are these Cadillac MPG figures real-world numbers?

They are EPA laboratory test ratings, which is the same standard used on the window sticker. Real-world results for a Cadillac typically land within about 10-15% of the combined rating, and drop further in cold weather, in stop-and-go traffic, at sustained highway speeds above 70 mph, or when towing.

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