BMW 4-Series Convertible (G23) 420i 8AT (184 HP) ASTON MARTIN DB12 Volante 4.0L V8 Turbo 8AT RWD (680 HP)
engine specs
Cylinders
L4V8
Displacement
1998 cm3-
Power
135.3 KW @ 5000-6500 RPM
184 HP @ 5000-6500 RPM
181 BHP @ 5000-6500 RPM
500.1 KW @ 6000 RPM
680 HP @ 6000 RPM
671 BHP @ 6000 RPM
Torque
221 lb-ft @ 1350-4000 RPM
300 Nm @ 1350-4000 RPM
590 lb-ft @ 2750-6000 RPM
800 Nm @ 2750-6000 RPM
Fuel System
Turbocharged Direct InjectionTurbocharged Direct Injection
Fuel
GasolineGasoline
Fuel capacity
15.6 gallons (59.1 L)-
performance specs
Top Speed
147 mph (237 km/h)-
Acceleration 0-62 Mph (0-100 kph)
8.2 s3.6 s
transmission specs
Drive Type
Rear Wheel DriveRear Wheel Drive
Gearbox
8-speed automatic Steptronic8-speed automatic
brakes specs
Front
Ventilated DiscsVentilated discs
Rear
Ventilated DiscsVentilated discs
tires specs
Tire Size
225/50 R17 98Y XL-
dimensions
Length
187.7 in (4768 mm)-
Width
72.9 in (1852 mm)-
Height
54.5 in (1384 mm)-
Front/rear Track
62/63.4 in (1,575/1,610 mm)-
Wheelbase
112.2 in (2850 mm)-
Cargo Volume
13.6 cuFT (385 L)-
Aerodynamics (Cd)
0.28-
Ground Clearance
4.9 in (124 mm)-
Turning circle (curb to curb)
37.4 ft (11.4 m)-
weight specs
Unladen Weight
3891 lbs (1765 kg)-
Gross Weight Limit
4817 lbs (2185 kg)-
fuel economy (nedc)
Combined
38.6 mpg US (6.1 L/100Km)-
City
31.8 mpg US (7.4 L/100Km)-
Highway
43.6 mpg US (5.4 L/100Km)-
CO2 Emissions
140 g/km-

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