2018 BMW 3 Series Sedan Diesel vs. 2021 Cadillac CT4

Image Comparison

Compare images of 2018 BMW 3 Series Sedan Diesel and 2021 Cadillac CT4 by choosing the desired model and trim and then selecting the comparison image.

What is the main difference between 3 Series Sedan Diesel and CT4?

Two Sedans with some similarities, but otherwise different in most aspects such as the model year, powertrain, horsepower, fuel economy, and starting price. First of all, there is a notable difference in the starting price of the 2021 Cadillac CT4, which is $8,355 less than the base MSRP of the 2018 BMW 3 Series Sedan Diesel, which is three model years older. Also, the 2021 CT4 has a more powerful engine than the 2018 3 Series Sedan Diesel, and it gets 9 fewer miles on a gallon of fuel. Among similarities are the body structure, market segment, ground shadow size, height, and maximum occupancy.

Specification Comparison

Safety Rating
Safety Rating
    
    
Trim
Trim
Configuration
Configuration
  • 2.0 L, Turbo, Diesel, Auto, RWD
  • 2.0 L, Turbo, Auto, RWD
MSRP
MSRP
$41,750
$33,395
Engine
Engine
2.0L Inline-4 Turbo Diesel
2.0L/-TBD-
Horsepower
Horsepower
180 hp
237 hp
Drivetrain
Drivetrain
Rear Wheel Drive
Rear Wheel Drive
0-60 MPH
0-60 MPH
7.4 sec
City MPG
City MPG
31 MPG
23 MPG
Highway MPG
Highway MPG
43 MPG
34 MPG
Combined MPG
Combined MPG
36 MPG
27 MPG
Width
Width
80.0 in
Width W/O Mirrors
Width W/O Mirrors
71.3 in
71.4 in
Length
Length
182.8 in
187.2 in
Height
Height
56.3 - 56.5 in
56 in
Wheelbase
Wheelbase
110.6 in
109.3 in
Ground Shadow
Ground Shadow
90.5 ft2
92.8 ft2
Seats
Seats
5
5
First Row Head Room
First Row Head Room
40.3 in
38.3 in
First Row Leg Room
First Row Leg Room
42.0 in
42.4 in
First Row Leg Shoulder
First Row Leg Shoulder
55.1 in
55.2 in
Second Row Head Room
Second Row Head Room
37.7 in
36.5 in
Second Row Leg Room
Second Row Leg Room
35.1 in
33.4 in
Second Row Leg Shoulder
Second Row Leg Shoulder
55.1 in
53.9 in

Costs

2018 BMW 3 Series Sedan Diesel

2021 Cadillac CT4

Annual Fuel Cost
Annual Fuel Cost
$1,350 - $1,400
$2,000 - $2,150
Mininum Monthly Lease
Mininum Monthly Lease
$199 (2018 BMW 3 Series 328d Sedan)
$260 (2021 Cadillac CT4 4dr Sdn Luxury)
Lease Due
Lease Due
$3,000
$2,999
Cost To Lease
Cost To Lease
$11,514 - $11,564
$14,359 - $14,509
2018 BMW 3 Series Sedan Diesel vs. 2021 Cadillac CT4 - Front Left Comparison2018 BMW 3 Series Sedan Diesel vs. 2021 Cadillac CT4 - Front Left Comparison
2018 BMW 3 Series Sedan Diesel vs. 2021 Cadillac CT4 - Rear Right Comparison2018 BMW 3 Series Sedan Diesel vs. 2021 Cadillac CT4 - Rear Right Comparison
2018 BMW 3 Series Sedan Diesel vs. 2021 Cadillac CT4 - Dashboard Comparison2018 BMW 3 Series Sedan Diesel vs. 2021 Cadillac CT4 - Dashboard Comparison
2018 BMW 3 Series Sedan Diesel vs. 2021 Cadillac CT4 - Side Comparison2018 BMW 3 Series Sedan Diesel vs. 2021 Cadillac CT4 - Side Comparison
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