About $1,864 a year for full coverage on a national average — 30% more than the $1,438 average car. Insurers rate the Cadillac CT4 at an index of 130 where 100 is a typical vehicle, based on how often and how expensively these cars actually generate claims (latest data covers 2022-2024).
The premium isn't spread evenly. Collision — damage to your own car in a crash — carries this car's highest loss index at 136, while Property damage sits at 92. That gap is the real reason behind the price, and it's the part a quote form never shows you. Among 78 luxury cars we hold data for, the CT4 ranks #32 from cheapest, below the class median of 138. Against what the car is worth the bill looks different again: a 2023 CT4 sells for a median $44,995, so a year of cover costs 4.1% of the car's value. Over 4 generations of data the index has climbed from 122 (2019-2021) to 130 (2022-2024). Calculated from 14 insurance-loss records and live US listing prices.
Why a CT4 costs what it does
Insurers don't price a car with one number — they track losses separately for each kind of cover. An index of 100 is the average vehicle, so anything above means this model generates costlier claims of that type:
Read it as «where the money goes». A high Collision figure means these cars are expensive to repair after a crash; a high Comprehensive figure points at theft, weather and vandalism instead. Estimated annual split at $1,864: Liability (BI + PD) $895 · Collision $522 · Comprehensive $224 · Other (UM / PIP) $224.
The CT4 against its class
Every luxury cars we hold insurance data for, cheapest to insure first. The CT4 is highlighted — rivals are clickable if you're cross-shopping:
Class as defined by insurers (Luxury cars), not by us — it groups cars by how they're actually driven and repaired. Median for this class is 138, roughly $1,986 a year.
How it changed by generation
Insurance-loss index of the CT4 across every generation in the data. Newer isn't automatically cheaper — driver-assist systems cut crash frequency, while sensors and aluminium panels push repair bills up:
Each point averages every recorded variant of that generation. The CT4 has become more expensive to insure over time (+8 points).
What a CT4 costs by state
Where you park matters as much as what you drive. The CT4's index applied to each state's average premium — the same car, the same cover, different postcode:
| State | CT4 est. / yr | vs national |
|---|---|---|
| Florida | +39% vs US | |
| Louisiana | +38% vs US | |
| New York | +32% vs US | |
| District of Columbia | +26% vs US | |
| Georgia | +21% vs US | |
| Texas | +20% vs US | |
| Wisconsin | -30% vs US | |
| Hawaii | -31% vs US | |
| Idaho | -32% vs US | |
| North Dakota | -33% vs US | |
| Vermont | -33% vs US | |
| Maine | -36% vs US |
Six priciest and six cheapest states shown. Figures are the state's average premium scaled by this model's loss index — your own quote also depends on age, record, deductible and ZIP.
More on the Cadillac CT4
Cadillac CT4 insurance — frequently asked
How much is insurance for a Cadillac CT4?
About $1,864 a year for full coverage at the national average, versus $1,438 for a typical car. That's the model's insurance-loss index of 130 applied to the US average premium.
Why is the CT4 expensive or cheap to insure?
Its costliest area is Collision (index 136), which covers damage to your own car in a crash. Insurers set premiums from claim history like this, not from the sticker price.
Is the CT4 cheaper to insure than rivals?
It ranks #32 of 78 in the luxury cars class, where the median index is 138 against this car's 130. Cheaper rivals are listed in the chart above.
Is that a lot relative to the car's value?
A year of cover is 4.1% of what a 2023 CT4 sells for (a median $44,995). Cheap cars often show a higher percentage even when the dollar premium is lower.
Where does this data come from?
Insurance-loss indices published for real vehicles, combined with NAIC state average premiums. It's claim history, not a quote engine — so it shows what these cars actually cost insurers rather than what one company would offer you.
Will my own quote match this?
Treat it as a baseline for the car itself. Your figure also moves with age, driving record, deductible, mileage and ZIP code — the same CT4 can differ by hundreds between two drivers.