The Comparative Analysis :
BMW 420i Gran Coupé Steptronic (16 - 17) vs. Audi A5 Sportback g-tron S tronic (Natural Gas) (17 - 18)
€ 39,700

€ 44,800

€ 39,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 44,800
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The dimensions of these vehicles differ slightly. The BMW 420i Gran Coupé is 9.5 cm shorter, 1.8 cm narrower and 0.3 cm taller than the Audi A5 Sportback g-tron.
BMW 420i Gran Coupé
Audi A5 Sportback g-tron
1389
1825
2017
1386
1843
2029
1825 mm
Width
1843 mm
2017 mm
Width Incl. Mirrors
2029 mm
1389 mm
Height
1386 mm
2810
4638
2824
4733
4638 mm
Length
4733 mm
2810 mm
Wheelbase
2824 mm
Vehicle Weight
BMW 420i Gran Coupé
Audi A5 Sportback g-tron
1615 kg
Kerb Weight
1655 kg
2100 kg
Gross Vehicle
Weight
Weight
2130 kg

Weight Difference:
40 kg
2.42 %

General
BMW 420i Gran Coupé
Audi A5 Sportback g-tron
F36
Generation
F5
Hatchback
Car Body Style
Hatchback
Super Unleaded (98 RON)
Fuel Type
Natural Gas (CNG)

Rear-wheel drive
Drive
Front-wheel drive

8-speed automatic transmission
Transmission
7-speed dual clutch transmission
Engine
BMW 420i Gran Coupé
Audi A5 Sportback g-tron
Straight-four petrol engine with turbocharger
Engine Type
Straight-four engine with turbocharger
BMW B48
Engine Series
B48-B20
Engine Code
CVLA

4
Valves
4
4
Cylinders
4
1997 CC
Engine Capacity
1984 CC
181 bhp
at 5000 rpm
Power
168 bhp
at 4450 rpm
BMW 420i Gran Coupé
181 bhp
168 bhp
Audi A5 Sportback g-tron
270 NM
at 1350 rpm
Max. Torque
270 NM
at 1650 rpm
BMW 420i Gran Coupé
270 NM
270 NM
Audi A5 Sportback g-tron
Performance
BMW 420i Gran Coupé
Audi A5 Sportback g-tron
147 mph
Maximum Speed
139 mph
7.7 sec
Acceleration 0 to 62 mph
8.4 sec
62 mph
62
mph
mph
107 m
0.000 sec

BMW 420i Gran Coupé
62 mph
62
mph
mph
117 m
0.000 sec

Audi A5 Sportback g-tron
▶ REPLAY
8.92 kg/bhp
Weight-to-Power Ratio
9.85 kg/bhp
BMW 420i Gran Coupé
8.92 kg/bhp
9.85 kg/bhp
Audi A5 Sportback g-tron
Fuel Economy / Emissions
BMW 420i Gran Coupé
Audi A5 Sportback g-tron
Fuel Economy
51 mpg
combined ✽ per 100 miles
6.4 kg✽
( 7 MPGe ⓘ Miles per gallon petrol equivalent (MPGe) is a measure of the average distance traveled per unit of energy consumed. MPGe, specified in miles per imperial gallon (~4.546 litres), is used to compare the energy consumption of vehicles that use different energy sources.)
BMW 420i Gran Coupé
51 mpg
7 MPGe
Audi A5 Sportback g-tron
40 mpg
city
8.4 kg
No data
motorway
No data
60 L
Fuel Tank Capacity
19 kg
678 mi
Range
295 mi
BMW 420i Gran Coupé
678 mi
295 mi
Audi A5 Sportback g-tron
Environmental Impact
104.1 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).
29.3 kWh
BMW 420i Gran Coupé
104.1 kWh
29.3 kWh
Audi A5 Sportback g-tron
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
127 g/km (NEFZ)
CO2 Emissions
109 g/km (NEFZ)
Practical Convenience
BMW 420i Gran Coupé
Audi A5 Sportback g-tron
5
Doors
5
5
No. of Seats
4
485 kg
Maximum Payload
475 kg
480 L
Boot Capacity
390 L









1300 L
Boot Capacity (Seats Down)
1200 L