The Comparative Analysis :
BMW 420i Coupé (17 - ..) vs. BMW M3 Coupé SMG (04 - 06)
€ 41,300
€ 60,100
€ 41,300
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 60,100
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The 420i Coupé is slightly bigger in every dimension. It's 5.7 inches longer, 1.8 inches wider and 0.2 inches taller than the M3 Coupé.
420i Coupé
M3 Coupé
54.2
71.9
79.4
54
70.1
78
71.9 in
Width
70.1 in
79.4 in
Width Incl. Mirrors
78 in
54.2 in
Height
54 in
110.6
182.6
107.5
176.9
182.6 in
Length
176.9 in
110.6 in
Wheelbase
107.5 in
Vehicle Weight
420i Coupé
M3 Coupé
3417 lb
Curb Weight
3461 lb
4398 lb
Gross Vehicle
Weight
Weight
4409 lb
Weight Difference:
44 lb
1.27 %
General
420i Coupé
M3 Coupé
F32
Generation
E46
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Premium Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
6-speed manual transmission
Transmission
6-speed automated manual transmission (AMT)
Engine
420i Coupé
M3 Coupé
Straight-four gasoline engine with turbocharger
Engine Type
Straight-six gasoline engine (naturally aspirated engine)
BMW B48
Engine Series
BMW S54
B48-B20
Engine Code
S54-B32
4
Valves
4
4
Cylinders
6
2 L / 98 cu in
Displacement
3.2 L / 157 cu in
181 hp
at 5000 rpm
Power
338 hp
at 7900 rpm
420i Coupé
181 hp
338 hp
M3 Coupé
199 lb‑ft
at 1350 rpm
Max. Torque
269 lb‑ft
at 4900 rpm
420i Coupé
199 lb‑ft
269 lb‑ft
M3 Coupé
Performance
420i Coupé
M3 Coupé
147 mph
Maximum Speed
155 mph
7.3 sec
Acceleration 0 to 62 mph
5.2 sec
62 mph
62
mph
mph
331 ft
0.000 sec
420i Coupé
62 mph
62
mph
mph
236 ft
0.000 sec
M3 Coupé
▶ REPLAY
18.88 lb/hp
Weight-to-Power Ratio
10.24 lb/hp
420i Coupé
18.88 lb/hp
10.24 lb/hp
M3 Coupé
Fuel Economy / Emissions
420i Coupé
M3 Coupé
Fuel Economy
37 mpg
combined
18 mpg
420i Coupé
37 mpg
18 mpg
M3 Coupé
29 mpg
city
12 mpg
No data
highway
No data
15.9 gal
Fuel Tank Capacity
16.6 gal
583 mi
Range
292 mi
420i Coupé
583 mi
292 mi
M3 Coupé
Environmental Impact
121.2 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
253.8 kWh
420i Coupé
121.2 kWh
253.8 kWh
M3 Coupé
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 4
269 g/mi (WLTP)
CO2 Emissions
520 g/mi (NEFZ)
Practical Convenience
420i Coupé
M3 Coupé
2
Doors
2
4
No. of Seats
5
981 lb
Maximum Payload
948 lb
12.6 cu ft
Trunk Volume
11.6 cu ft
No data
Cargo Volume (Seats Down)
No data
