Compare 2021 Audi A4 vs 2021 BMW 3-Series vs 2021 Cadillac CT4

2021 Audi A4
#3 in Wagons
X
2021 BMW 3-Series
#1 in Luxury Small Sedans
X
2021 Cadillac CT4
#7 in Luxury Small Sedans
X
Get Your Price Get Your Price Get Your Price
Select style
Premium 40 TFSI quattro
Style MPG City MPG Hwy Invoice MSRP
A4 Sedan Premium 40 TFSI quattro 24 31 $36,755 $39,100
A4 Sedan Premium Plus 40 TFSI quattro 24 31 $36,755 $39,100
A4 Sedan Prestige 40 TFSI quattro 24 31 $36,755 $39,100
A4 Sedan S line Premium 45 TFSI quattro 24 31 $38,447 $40,900
A4 Sedan S line Premium Plus 45 TFSI quattro 24 31 $38,447 $40,900
A4 Sedan S line Prestige 45 TFSI quattro 24 31 $38,447 $40,900
A4 allroad Premium 45 TFSI quattro 24 30 $41,924 $44,600
A4 allroad Premium Plus 45 TFSI quattro 24 30 $41,924 $44,600
A4 allroad Prestige 45 TFSI quattro 24 30 $41,924 $44,600
S4 Premium 3.0 TFSI quattro 20 28 $46,907 $49,900
S4 Premium Plus 3.0 TFSI quattro 20 28 $46,907 $49,900
S4 Prestige 3.0 TFSI quattro 20 28 $46,907 $49,900
Select style
330e Plug-In Hybrid
Style MPG City MPG Hwy Invoice MSRP
3 Series 330e Plug-In Hybrid N/A N/A $41,930 $44,550
3 Series 330e Plug-In Hybrid North America N/A N/A $41,930 $44,550
3 Series 330e xDrive Plug-In Hybrid N/A N/A $43,790 $46,550
3 Series 330e xDrive Plug-In Hybrid North America N/A N/A $43,790 $46,550
3 Series 330i Sedan 26 36 $38,865 $41,250
3 Series 330i Sedan North America 26 36 $38,865 $41,250
3 Series 330i xDrive Sedan 25 34 $40,725 $43,250
3 Series 330i xDrive Sedan North America 25 34 $40,725 $43,250
3 Series M340i Sedan 23 32 $51,370 $54,700
3 Series M340i Sedan North America 23 32 $51,370 $54,700
3 Series M340i xDrive Sedan 22 31 $53,230 $56,700
3 Series M340i xDrive Sedan North America 22 31 $53,230 $56,700
M3 Competition Sedan 16 23 $68,205 $72,800
M3 Sedan 16 23 $65,505 $69,900
Select style
4-Door Sedan Luxury
Style MPG City MPG Hwy Invoice MSRP
CT4 4-Door Sedan Luxury 23 34 $31,725 $33,395
CT4 4-Door Sedan Premium Luxury 23 34 $35,715 $37,595
CT4 4-Door Sedan Sport 23 34 $36,760 $38,695
CT4 4-Door Sedan V-Series 20 29 $42,650 $44,895
Pricing
Invoice Price
$36,755
$41,930
$31,725
Manufacturer Suggested Retail Price
$39,100
$44,550
$33,395
Monthly Payment Estimate
$652 / month
$743 / month
$557 / month
The Car Connection's Take
TCC Rating
6.8
7.7
6.2
TCC’s Bottom Line
The 2021 Audi A4 blends a conservative luxury compact car with spicy performance and robust wagon flavors. The flexible 2021 BMW 3-Series lineup offers something for everyone, so long as they’re not smitten with SUVs. The 2021 Cadillac CT4 is well-equipped and fun to drive, making it a good small sedan choice.
TCC Likes
TCC Dislikes
Fuel Economy
City
24 mpg Coming Soon 23 mpg
Highway
31 mpg Coming Soon 34 mpg
Vehicle
EPA Classification
Compact Cars Compact Cars Compact Cars
Number of Passenger Doors
- - 4
Interior Dimensions
Second Leg Room (in)
35.7 35.2 33.4
Front Leg Room (in)
41.3 42 42.4
Passenger Capacity
5 5 5
Second Head Room (in)
37.4 37.6 36.5
Second Shoulder Room (in)
54.5 54.6 53.9
Front Head Room (in)
37.3 38.7 38.3
Front Shoulder Room (in)
55.9 56 55.2
Second Hip Room (in)
- - 52.5
Passenger Volume (ft³)
- - - TBD -
Front Hip Room (in)
- - 53
Exterior Dimensions
Height, Overall (in)
56.2 56.9 56
Track Width, Rear (in)
61.2 61.8 61.7
Wheelbase (in)
111 112.2 109.3
Width, Max w/o mirrors (in)
72.7 71.9 71.4
Track Width, Front (in)
61.9 62.2 60.3
Min Ground Clearance (in)
5.2 - NA
Length, Overall (in)
187.5 185.7 187.2
Liftover Height (in)
- - NA
Cargo Area Dimensions
Trunk Volume (ft³)
12 13.2 10.7
Brakes
Drum - Rear (Yes or )
NA NA NA
Brake ABS System
4-Wheel 4-Wheel 4-Wheel
Disc - Rear (Yes or )
Yes Yes Yes
Rear Brake Rotor Diam x Thickness (in)
11.8 - 12.4 x 0.9
Brake Type
4-Wheel Disc 4-Wheel Disc Pwr
Rear Drum Diam x Width (in)
NA - NA
Disc - Front (Yes or )
Yes Yes Yes
Front Brake Rotor Diam x Thickness (in)
12.4 - 11.8 x 1.0
Fuel Tank
Fuel Tank Capacity, Approx (gal)
15.3 10.6 17
Steering
Steering Type
Rack-Pinion Rack-Pinion Electric Rack & Pinion
Turning Diameter - Curb to Curb (ft)
38.1 37.2 NA
Steering Ratio (:1), Overall
- - NA
Lock to Lock Turns (Steering)
- - NA
Turning Diameter - Wall to Wall (ft)
- - NA
Tires
Spare Tire Size
Compact NA NA
Front Tire Order Code
NA NA Q5O
Spare Tire Order Code
NA NA NA
Rear Tire Size
P225/50HR17 P225/45HR18 P225/45R17
Rear Tire Order Code
NA NA Q5O
Front Tire Size
P225/50HR17 P225/45HR18 P225/45R17
Weight Information
Base Curb Weight (lbs)
3682 4039 3422
Wheels
Rear Wheel Material
Aluminum Aluminum Aluminum
Rear Wheel Size (in)
17 X 7.5 18 X 7.5 17 x 8
Front Wheel Material
Aluminum Aluminum Aluminum
Spare Wheel Material
Steel NA NA
Front Wheel Size (in)
17 X 7.5 18 X 7.5 17 x 8
Spare Wheel Size (in)
Compact NA NA
Engine
Engine Type
Intercooled Turbo Gas/Electric I-4 Intercooled Turbo Gas/Electric I-4 Turbocharged I4
Fuel System
Gasoline Direct Injection Gasoline Direct Injection Direct Injection
SAE Net Torque @ RPM
236 @ 1450 310 258 @ 1500-4000
Engine Order Code
NA NA LSY
Displacement
2.0 L/121 2.0 L/122 2.0L/- TBD -
SAE Net Horsepower @ RPM
201 @ 4200 288 @ 3800 237 @ 5000
Mileage
EPA Fuel Economy Est - City (MPG)
24 - 23
Fuel Economy Est-Combined (MPG)
27 28 27
EPA Fuel Economy Est - Hwy (MPG)
31 - 34
EPA MPG Equivalent - Combined
- 75 -
Estimated Battery Range (mi)
- 23 -
Transmission
Second Gear Ratio (:1)
2.19 3.14 3.04
Trans Order Code
ZY 2TB M5N
Seventh Gear Ratio (:1)
0.39 0.84 0.85
Fourth Gear Ratio (:1)
1.06 1.67 1.66
Trans Description Cont.
Auto-Shift Manual w/OD Automatic w/OD Automatic
Drivetrain
All Wheel Drive Rear Wheel Drive Rear Wheel Drive
Sixth Gear Ratio (:1)
0.51 1.00 1.00
First Gear Ratio (:1)
3.19 4.71 4.61
Final Drive Axle Ratio (:1)
4.23 3.23 2.85
Third Gear Ratio (:1)
1.52 2.11 2.06
Trans Type
7 8 8
Fifth Gear Ratio (:1)
0.74 1.28 1.26
Trans Description Cont. Again
NA NA NA
Reverse Ratio (:1)
2.75 3.32 3.93
Eighth Gear Ratio (:1)
- 0.67 0.66
Clutch Size (in)
- - - TBD -
Summary
Vehicle Name
Audi A4 Sedan BMW 3 Series Cadillac CT4
Body Style
quattro Sedan Sedan Sedan
Suspension
Suspension Type - Rear
Multi-Link Multi-Link Five-Link
Suspension Type - Rear (Cont.)
Multi-Link Multi-Link w/Coil Springs
Suspension Type - Front
Multi-Link Strut MacPherson Strut
Suspension Type - Front (Cont.)
Multi-Link Strut NA
Shock Absorber Diameter - Front (mm)
- - NA
Stabilizer Bar Diameter - Front (in)
- - NA
Shock Absorber Diameter - Rear (mm)
- - NA
Stabilizer Bar Diameter - Rear (in)
- - NA
Emissions
Tons/yr of CO2 Emissions @ 15K mi/year
6.6 - 6.5
Trailering
Dead Weight Hitch - Max Tongue Wt. (lbs)
- - NA
Wt Distributing Hitch - Max Tongue Wt. (lbs)
- - NA
Dead Weight Hitch - Max Trailer Wt. (lbs)
- - NA
Wt Distributing Hitch - Max Trailer Wt. (lbs)
- - NA
Cooling System
Total Cooling System Capacity (qts)
- - NA
Electrical
Cold Cranking Amps @ 0° F (Primary)
- - NA
Maximum Alternator Capacity (amps)
- - NA
Crash Test Ratings
Overall Rating
- -
Overall Frontal Barrier Crash Rating
- -
Frontal Barrier Crash Rating Driver
- -
Frontal Barrier Crash Rating Passenger
- -
Overall Side Crash Rating
- -
Side Barrier Rating
- -
Side Barrier Rating Driver
- -
Side Barrier Rating Passenger Rear Seat
- -
Side Pole Rating Driver Front Seat
- -
Combined Side Rating Front Seat
- -
Combined Side Rating Rear Seat
- -
Rollover Rating
- -
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2021 Audi A4
  • 2022 Audi A4 is here; 2021s still available
  • Lease: No special offers, which is unusual
  • Rebates: Up to $2,000 off
  • Finance: From 0.49% APR for 60 months
Get Your Price
2021 BMW 3-Series
  • 2021 BMW 3-Series available; 2022s arriving
  • Lease: From $429 for 36 months
  • Rebate: $1,000 college graduate
  • Financing: From 0.9% APR for 60 months
Get Your Price
2021 Cadillac CT4
  • 2021 CT4 selection robust; 2020s sold out
  • Lease: From $329 for 36 months
  • Rebates: Up to $3,250 off 2021s
  • Finance: From 0.9% APR for 72 months + up to $1,750 bonus
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