The Comparative Analysis :
BMW 640i Convertible Steptronic (15 - 18) vs. Maserati GranConvertible Automatic (13 - 17)
€ 91,700

€ 133,200

€ 91,700
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 133,200
ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info
Vehicle Dimensions
The BMW 640i Cabrio is a little bigger in every dimension. It's 0.5 inches longer, 1.9 inches wider and 0.5 inches taller than the Maserati GranCabrio.
BMW 640i Cabrio
Maserati GranCabrio
53.7
74.6
81.9
53.3
72.7
80.6
74.6 in
Width
72.7 in
81.9 in
Width Incl. Mirrors
80.6 in
53.7 in
Height
53.3 in
112.4
192.7
115.8
192.2
192.7 in
Length
192.2 in
112.4 in
Wheelbase
115.8 in
Vehicle Weight
BMW 640i Cabrio
Maserati GranCabrio
4178 lb
Curb Weight
4365 lb
5126 lb
Gross Vehicle
Weight
Weight
5181 lb

Weight Difference:
187 lb
4.28 %

General
BMW 640i Cabrio
Maserati GranCabrio
F12
Generation
AM145
Convertible
Car Body Style
Convertible
Premium Unleaded
Fuel Type
Mid-Grade Unleaded

Rear-wheel drive
Drivetrain
Rear-wheel drive

8-speed automatic transmission
Transmission
6-speed automatic transmission
Engine
BMW 640i Cabrio
Maserati GranCabrio
Straight-six gasoline engine with turbocharger
Engine Type
V8 gasoline engine (naturally aspirated engine)
BMW N55
Engine Series
N55-B30
Engine Code

4
Valves
4
6
Cylinders
8
3 L / 147 cu in
Displacement
4.7 L / 230 cu in
316 hp
at 5800 rpm
Power
444 hp
at 7000 rpm
BMW 640i Cabrio
316 hp
444 hp
Maserati GranCabrio
332 lb‑ft
at 1300 rpm
Max. Torque
361 lb‑ft
at 4750 rpm
BMW 640i Cabrio
332 lb‑ft
361 lb‑ft
Maserati GranCabrio
Performance
BMW 640i Cabrio
Maserati GranCabrio
155 mph
Maximum Speed
176 mph
5.5 sec
Acceleration 0 to 62 mph
5.3 sec
62 mph
62
mph
mph
249 ft
0.000 sec

BMW 640i Cabrio
62 mph
62
mph
mph
243 ft
0.000 sec

Maserati GranCabrio
▶ REPLAY
13.22 lb/hp
Weight-to-Power Ratio
9.83 lb/hp
BMW 640i Cabrio
13.22 lb/hp
9.83 lb/hp
Maserati GranCabrio
Fuel Economy / Emissions
BMW 640i Cabrio
Maserati GranCabrio
Fuel Economy
31 mpg
combined
16 mpg
BMW 640i Cabrio
31 mpg
16 mpg
Maserati GranCabrio
22 mpg
city
10 mpg
No data
highway
24 mpg
18.5 gal
Fuel Tank Capacity
19.8 gal
565 mi
Range
321 mi
BMW 640i Cabrio
565 mi
321 mi
Maserati GranCabrio
Environmental Impact
145.8 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).
274.7 kWh
BMW 640i Cabrio
145.8 kWh
274.7 kWh
Maserati GranCabrio
Euro 6b (NEFZ)
Emission Standard
Euro 6b (NEFZ)
288 g/mi (NEFZ)
CO2 Emissions
542 g/mi (NEFZ)
Practical Convenience
BMW 640i Cabrio
Maserati GranCabrio
2
Doors
2
4
No. of Seats
4
948 lb
Maximum Payload
816 lb
9.9 cu ft
Trunk Volume
4.9 cu ft






No data
Cargo Volume (Seats Down)
No data