BMW M4 vs Mercedes-Benz SL-Class Insurance Cost

The Mercedes-Benz SL-Class is cheaper to insure by about $1,930 a year for full coverage by our estimate ($4,260 vs. $2,330), and cheaper in 51 of 51 states.

These are estimates, not quotes. Figures are modeled from public data (NAIC, Census, FEMA, IIHS/HLDI) for comparison only. Your actual premium depends on your insurer, driving history, vehicle and coverage choices. We are not an insurance company or agency. How we estimate

Side-by-side insurance estimate

CoverageBMW M4Mercedes-Benz SL-ClassDifference
State minimum$930$500+$430
Standard (100/300/100)$1,345$725+$620
Full coverage$4,260$2,330+$1,930

National average base rates, driver in their 30s with a clean record, latest model year of each car. Difference = M4 minus SL-Class.

Why one costs more to insure

FactorBMW M4Mercedes-Benz SL-Class
SegmentLuxury sports carLuxury sports car
PowertrainsGasolineGasoline, Hybrid, Plug-in hybrid
HLDI collision (100 = avg)549210
HLDI comprehensive278292
HLDI property damage liability18064
HLDI bodily injury liability——
NHTSA overall rating——
NICB most-stolen rankNot in top 10Not in top 10
Recalls (latest 3 model years)12

Collision losses are the biggest swing factor: the BMW M4 has 339 points higher relative collision losses, meaning its crash repairs cost insurers more on average. Comprehensive losses (theft, weather, glass) also favor the BMW M4.

M4 vs SL-Class insurance by state

By driver profile (full coverage)

DriverM4SL-Class
Teen driver (18, own policy)$11,710$6,410
Young adult (22)$6,815$3,730
Adult in their 30s$4,260$2,330
Adult in their 50s$3,920$2,145
Senior (72)$4,770$2,610
30s, one at-fault accident$6,175$3,380
30s, DUI on record$7,880$4,315

More comparisons

Frequently asked questions

Is the BMW M4 or the Mercedes-Benz SL-Class cheaper to insure?

By our estimate the Mercedes-Benz SL-Class is cheaper, by about $1,930 a year for full coverage ($4,260 vs. $2,330) for a driver in their 30s with a clean record.

Why does insurance cost differ between the BMW M4 and Mercedes-Benz SL-Class?

Mostly because of insurance-loss history: HLDI collision indices of 549 vs. 210 and comprehensive indices of 278 vs. 292 (100 = average), plus repair costs, theft rates and segment.

How we estimate this

We start from the state's average liability, collision and comprehensive premiums published by the NAIC, then apply a location factor (population density and commute time from the Census ACS, weather hazard scores from FEMA's National Risk Index), a vehicle factor (HLDI insurance-loss data where available, otherwise vehicle segment), and a driver-profile multiplier. Results are rounded ranges for comparison, not quotes. Read the full methodology.