BMW M5 vs. Cadillac CT5
iSeeCars' unbiased and data-driven comparison of the BMW M5 and Cadillac CT5 contrasts the two cars across a broad spectrum of vehicle specifications to determine which car is better. In addition to comparing pricing and specs, iSeeCars uses all the ratings, rankings, and insights from its comprehensive analyses of each vehicle model, including calculations of reliability, safety, depreciation, value retention, and the vehicle's projected lifetime recalls (based on analyzing over 25 billion data points). This in-depth evaluation is used to identify which vehicle represents a better overall choice for shoppers who are considering both the BMW M5 and the Cadillac CT5.
In comparing the BMW M5's and the Cadillac CT5's specifications and ratings, the BMW M5 has the advantage in the area of base engine power. The Cadillac CT5 has the advantage in the areas of typical lower range of pricing for one- to five-year-old used cars, and fuel efficiency and resale value. Based on this comparison of the BMW M5's and the Cadillac CT5's specifications and ratings, the Cadillac CT5 is a better car than the BMW M5.
Pricing: A used 2023 BMW M5 ranges from $82,697 to $123,278 while a used 2023 Cadillac CT5 is priced between $26,992 to $42,861.
Resale/Retained Value: Looking at the 5-year depreciation rate for both models, the BMW M5 loses 57.8 percent of its value and the Cadillac CT5 loses 46 percent of its value. This means the Cadillac CT5 retains 11.7 percentage points more of its value and has the advantage of higher resale value versus the BMW M5.
Engine Power and Fuel Efficiency Comparison: For engine performance, the BMW M5’s base engine makes 600 horsepower, and the Cadillac CT5 base engine makes 237 horsepower. The M5 is rated to deliver an average of 17 miles per gallon, with a highway range of 422 miles. The CT5 is rated to deliver an average of 27 miles per gallon, with a highway range of 561 miles. This gives the Cadillac CT5 the fuel efficiency and maximum range advantage over the BMW M5. Both models use premium unleaded.
Safety Ratings: The Cadillac CT5 has an average safety rating of 5 out of 5 Stars based on NHTSA's crash test ratings.
New Car Pricing
Asking Price:
-
Starting MSRP:
109900
Category Avg Starting MSRP:
(Luxury Midsize Cars)
71383
Category Starting MSRP Range:
(Luxury Midsize Cars)
38195 - 134100
New Car Pricing
Asking Price:
39458 - 60081
Starting MSRP:
38195
Category Avg Starting MSRP:
(Luxury Midsize Cars)
71383
Category Starting MSRP Range:
(Luxury Midsize Cars)
38195 - 134100
Used Car Pricing
Avg Used Car Price:
96697
Price Range:
82697 - 123278
Category Avg Price:
(Luxury Midsize Cars)
61758
Category Avg Price Range:
(Luxury Midsize Cars)
34827 - 111788
# Used Cars for Sale Nationally:
67
Avg Mileage of Used Cars for Sale:
26851
# Good or Great Deals:
26
Used Car Pricing
Avg Used Car Price:
34827
Price Range:
26992 - 42861
Category Avg Price:
(Luxury Midsize Cars)
61758
Category Avg Price Range:
(Luxury Midsize Cars)
34827 - 111788
# Used Cars for Sale Nationally:
353
Avg Mileage of Used Cars for Sale:
36596
# Good or Great Deals:
155
BMW M5 Scores & Rankings
Overall Score:
7.3 / 10
Reliability:
7.3 / 10
Retained Value:
7.3 / 10
Safety:
Not available
Cadillac CT5 Scores & Rankings
Overall Score:
Not available
Reliability:
Not available
Retained Value:
8.1 / 10
Safety:
8.0 / 10
iSeeCars Reliability Insights for BMW M5
Remaining Life Expectancy (years):
8.2
Typical Category Remaining Life Expectancy:
(Luxury Midsize Cars)
10.8
Category Remaining Life Expectancy Range:
(Luxury Midsize Cars)
7.4 - 20.1
Chance of Reaching 200k Miles for a New Car:
0.0
iSeeCars Reliability Insights for Cadillac CT5
Remaining Life Expectancy (years):
Typical Category Remaining Life Expectancy:
(Luxury Midsize Cars)
10.8
Category Remaining Life Expectancy Range:
(Luxury Midsize Cars)
7.4 - 20.1
Chance of Reaching 200k Miles for a New Car:
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
4.265146092292842
Typical Category Recalls:
(Luxury Midsize Cars)
2.6
Category Range for Recalls:
(Luxury Midsize Cars)
0.6 - 16.0
Expected 30-year Lifetime Recalls
Expected Lifetime Recalls:
1.8742476814138753
Typical Category Recalls:
(Luxury Midsize Cars)
2.6
Category Range for Recalls:
(Luxury Midsize Cars)
0.6 - 16.0
BMW M5 Rankings
Ranking
2 out of / 20Ranking
3 out of / 20Ranking
3 out of / 20Ranking
10 out of / 20Ranking
10 out of / 20Ranking
11 out of / 20Ranking
14 out of / 20Cadillac CT5 Rankings
Ranking
4 out of / 20Ranking
4 out of / 16Ranking
5 out of / 20Ranking
5 out of / 20Ranking
6 out of / 20Ranking
7 out of / 20Ranking
8 out of / 20Ranking
16 out of / 20Available Body Styles
Sedan
Available Body Styles
Sedan
Available Drivetrain Options
Gasoline
Available Drivetrain Options
Gasoline
BMW M5 Trim Levels
Base
Cadillac CT5 Trim Levels
Luxury, Premium Luxury, Sport
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
4 years / 50000 miles
Warranty, Roadside Assistance:
4 years
Warranty Information
Warranty, Bumper-to-Bumper:
4 years / 50000 miles
Warranty, Powertrain:
6 years / 70000 miles
Warranty, Roadside Assistance:
6 years / 70000 miles
Safety Ratings
NHTSA Safety Rating (last 5 year average):
Not yet available
2026 NHTSA Overall Rating:
Not yet available
2026 NHTSA Front Crash Overall Rating:
Not yet available
2026 NHTSA Side Crash Overall Rating:
Not yet available
2026 NHTSA Rollover Rating:
Not yet available
IIHS Safety Rating:
Not yet available
Safety Ratings
NHTSA Safety Rating (last 5 year average):
5 out of 5 Stars
2026 NHTSA Overall Rating:
5 out of 5 Stars
2026 NHTSA Front Crash Overall Rating:
5 out of 5 Stars
2026 NHTSA Side Crash Overall Rating:
5 out of 5 Stars
2026 NHTSA Rollover Rating:
5 out of 5 Stars
IIHS Safety Rating:
Not yet available
Base Drivetrain Specs
Horsepower:
600 hp @ 6000 rpm
Torque:
553 foot-lbs @ 1800 rpm
Power-to-Weight Ratio (higher is better):
0.138 hp per pound
Base Drivetrain Specs
Horsepower:
237 hp @ 5000 rpm
Torque:
258 foot-lbs @ 1500 rpm
Power-to-Weight Ratio (higher is better):
0.065 hp per pound
Engine Specifications
Engine Size:
4.4 liters
Engine Configuration:
V
Number of Cylinders:
8
Transmission:
Automatic
Standard/Optional Drivetrain Type:
AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
15 / 21 / 17
Range (city/hwy):
302 / 422 miles
Recommended Fuel Type:
Premium Unleaded
Engine Specifications
Engine Size:
2 liters
Engine Configuration:
Inline
Number of Cylinders:
4
Transmission:
Automatic
Standard/Optional Drivetrain Type:
RWD / AWD
EPA Fuel Economy
(City/Highway/Combined MPG):
23 / 33 / 27
Range (city/hwy):
391 / 561 miles
Recommended Fuel Type:
Premium Unleaded
Standard/Optional Features
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Standard
Heated Steering Wheel:
Standard
Internet Radio:
Standard
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Parking Sensors:
Standard
Power Lift Gate:
Standard
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Voice Recognition:
Standard
Wifi:
Standard
Wireless Smartphone Charging:
Standard
Adaptive Cruise Control:
Available
Automatic Parking:
Available
Cooled/Ventilated Seats:
Available
Massage Seats:
Available
Sunroof/Moonroof:
Available
Air Suspension:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Panoramic Sunroof/Moonroof
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Trailer Hitch:
N/A
Standard/Optional Features
Alloy wheels:
Standard
Android Auto:
Standard
Apple CarPlay:
Standard
Bench Seats:
Standard
Bluetooth:
Standard
Heated Seats
Available
Heated Steering Wheel:
Available
Internet Radio:
N/A
Keyless Entry:
Standard
Keyless Ignition:
Standard
Leather Upholstery:
Standard
Navigation System:
Standard
Paddle Shifters:
Standard
Parking Sensors:
Standard
Power Lift Gate:
N/A
Power outlet:
Standard
Roadside assistance:
Standard
Satellite radio:
Standard
Voice Recognition:
Standard
Wifi:
Standard
Wireless Smartphone Charging:
Standard
Adaptive Cruise Control:
Available
Automatic Parking:
Available
Cooled/Ventilated Seats:
Available
Massage Seats:
Available
Sunroof/Moonroof:
Available
Air Suspension:
N/A
Captain's seat:
N/A
Front Bench Seats:
N/A
Panoramic Sunroof/Moonroof
N/A
Quad Seats:
N/A
Roof Rack:
N/A
Trailer Hitch:
N/A
Safety Features
Backup camera:
Standard
Blind Spot Monitoring:
Standard
Driver Attention Monitoring:
Standard
Forward Collision Warning:
Standard
Lane Departure Warning:
Standard
Pedestrian Detection:
Standard
Rear Cross-Traffic Alert:
Standard
360-Degree Camera:
N/A
Lane Keeping Assist:
N/A
Rear Seat Reminder:
N/A
Safety Features
Backup camera:
Standard
Blind Spot Monitoring:
Standard
Driver Attention Monitoring:
N/A
Forward Collision Warning:
Standard
Lane Departure Warning:
Standard
Pedestrian Detection:
Standard
Rear Cross-Traffic Alert:
Standard
360-Degree Camera:
N/A
Lane Keeping Assist:
Standard
Rear Seat Reminder:
Standard
Interior Dimensions
Front Head Room:
40.7 inches
Front Leg Room:
41.4 inches
Front Shoulder Room:
58.7 inches
Rear Head Room:
38.5 inches
Rear Leg Room:
36.5 inches
Rear Shoulder Room:
55.9 inches
Cargo Space:
18.7 cubic feet
Overall Interior Volume:
103.0 cubic feet
Interior Dimensions
Front Head Room:
39 inches
Front Leg Room:
42.4 inches
Front Shoulder Room:
56.7 inches
Rear Head Room:
36.6 inches
Rear Leg Room:
37.9 inches
Rear Shoulder Room:
55.7 inches
Cargo Space:
11.9 cubic feet
Overall Interior Volume:
Not yet available
Exterior Dimensions
Curb Weight:
4345 lbs
Width:
83.7 inches
Height:
58 inches
Length:
196.4 inches
Wheelbase:
117.4 inches
Ground Clearance:
5.2 inches
Exterior Dimensions
Curb Weight:
3659 lbs
Width:
80.3 inches
Height:
57.2 inches
Length:
193.8 inches
Wheelbase:
116 inches
Ground Clearance:
Not yet available
Standard Wheel/Tire Information
Wheel Size:
19.0 x 9.5 inches
Wheel Type:
painted aluminum alloy
Tire Size:
275/40R19
Standard Wheel/Tire Information
Wheel Size:
18.0 x 8.5 inches
Wheel Type:
painted aluminum alloy
Tire Size:
245/45R18
Exterior Colors
Black
Black Sapphire Metallic
Blue
Marina Bay Blue Metallic / Tanzanite Blue II Metallic
Gray
Alvite Grey Metallic / Dark Graphite Metallic / Skyscraper Grey Metallic
Green
San Remo Green Metallic
Red
Aventurin Red Metallic
White
Alpine White
Silver
Not available
Exterior Colors
Black
Black Raven
Blue
Midnight Steel Metallic / Wave Metallic
Gray
Not available
Green
Not available
Red
Radiant Red Tintcoat
White
Crystal White Tricoat / Summit White
Silver
Argent Silver Metallic
Interior Colors
Black
Black / Black/Midrand Beige
Brown
Aragon Brown / Tartufo
Gray
Silverstone
White
Smoke White/Black
Beige
Not available
Interior Colors
Black
Jet Black
Brown
Not available
Gray
Not available
White
Not available
Beige
Sahara Beige w/ Jet Black Accent
