The Comparative Analysis :
BMW 420i Coupé Steptronic (17 - ..) vs. Mazda RX-8 STD-Power (03 - 09)
€ 43,400
€ 29,600
€ 43,400
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 29,600
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 420i Coupé is considerably bigger in every dimension. It's 8.2 inches longer, 2.2 inches wider and 1.5 inches taller than the Mazda RX-8 STD-Power.
BMW 420i Coupé
Mazda RX-8 STD-Power
54.2
71.9
79.4
52.8
69.7
77.6
71.9 in
Width
69.7 in
79.4 in
Width Incl. Mirrors
77.6 in
54.2 in
Height
52.8 in
110.6
182.6
106.3
174.4
182.6 in
Length
174.4 in
110.6 in
Wheelbase
106.3 in
Vehicle Weight
BMW 420i Coupé
Mazda RX-8 STD-Power
3461 lb
Curb Weight
3082 lb
4442 lb
Gross Vehicle
Weight
Weight
4012 lb
Weight Difference:
379 lb
10.95 %
General
BMW 420i Coupé
Mazda RX-8 STD-Power
F32
Generation
SE
Coupe
Car Body Style
Coupe
Premium Unleaded
Fuel Type
Mid-Grade Unleaded
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
5-speed manual transmission
Engine
BMW 420i Coupé
Mazda RX-8 STD-Power
Straight-four gasoline engine with turbocharger
Engine Type
2-cylinder rotary engine (Wankel engine) (naturally aspirated engine)
BMW B48
Engine Series
B48-B20
Engine Code
4
Valves
0
4
Cylinders
2
2 L / 98 cu in
Displacement
1.3 L / 64 cu in
181 hp
at 5000 rpm
Power
189 hp
at 7000 rpm
BMW 420i Coupé
181 hp
189 hp
Mazda RX-8 STD-Power
199 lb‑ft
at 1350 rpm
Max. Torque
162 lb‑ft
at 5000 rpm
BMW 420i Coupé
199 lb‑ft
162 lb‑ft
Mazda RX-8 STD-Power
Performance
BMW 420i Coupé
Mazda RX-8 STD-Power
147 mph
Maximum Speed
139 mph
7.5 sec
Acceleration 0 to 62 mph
7.2 sec
62 mph
62
mph
mph
341 ft
0.000 sec
BMW 420i Coupé
62 mph
62
mph
mph
328 ft
0.000 sec
Mazda RX-8 STD-Power
▶ REPLAY
19.12 lb/hp
Weight-to-Power Ratio
16.31 lb/hp
BMW 420i Coupé
19.12 lb/hp
16.31 lb/hp
Mazda RX-8 STD-Power
Fuel Economy / Emissions
BMW 420i Coupé
Mazda RX-8 STD-Power
Fuel Economy
40 mpg
combined
22 mpg
BMW 420i Coupé
40 mpg
22 mpg
Mazda RX-8 STD-Power
35 mpg
city
16 mpg
No data
highway
29 mpg
15.9 gal
Fuel Tank Capacity
16.1 gal
632 mi
Range
357 mi
BMW 420i Coupé
632 mi
357 mi
Mazda RX-8 STD-Power
Environmental Impact
111.8 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).
200.8 kWh
BMW 420i Coupé
111.8 kWh
200.8 kWh
Mazda RX-8 STD-Power
Euro 6d-TEMP-EVAP-ISC (WLTP)
Emission Standard
Euro 4
278 g/mi (WLTP)
CO2 Emissions
430 g/mi (NEFZ)
Practical Convenience
BMW 420i Coupé
Mazda RX-8 STD-Power
2
Doors
4
4
No. of Seats
4
981 lb
Maximum Payload
930 lb
12.6 cu ft
Trunk Volume
8.2 cu ft
No data
Cargo Volume (Seats Down)
No data
