Site Title

Compare Cadillac CT6 vs BMW 6 Series G32 LCI

Reviews

Neoscore
86%
39%
Pros
  • Multi-link suspension on all four corners
  • Surprisingly good handling for a large sedan
  • Up to 550hp and 868Nm of torque (CT6-V)
  • Down to very low 1.7L/100km fuel consumption (PHEV)
  • Good 0.25 drag coefficient
  • Decent creature comfort
Cons
  • Extremely ugly
  • Ridiculous amount of electronics
  • Made not to last

Variants

2.0T
2.0T (340 Hp) PHEV
2.0T PHEV
3.0T V6 AWD
3.6L V6 AWD
CT6-V Blackwing
620d
630d
630d xDrive
630i
640d xDrive
640i
640i xDrive

Capacity

Cargo Capacity
2.0T433 L / 15.3 cu-ft2.0T (340 Hp) PHEV310 L / 10.9 cu-ft2.0T PHEV300 L / 10.6 cu-ft3.0T V6 AWD433 L / 15.3 cu-ft3.6L V6 AWD433 L / 15.3 cu-ftCT6-V Blackwing447 L / 15.8 cu-ft
600 L / 21.2 cu-ft ~ 1800 L / 63.6 cu-ft
Coolant Capacity
2.0T8.6 L / 9.1 qt2.0T (340 Hp) PHEV8.6 L / 9.1 qt2.0T PHEV9.8 L / 10.4 qt3.0T V6 AWD10.6 L / 11.2 qt3.6L V6 AWD9.8 L / 10.4 qtCT6-V Blackwing10.9 L / 11.5 qt
620d8.8 L / 9.3 qt630d8.8 L / 9.3 qt630d xDrive8.8 L / 9.3 qt630i9.9 L / 10.5 qt640i6.9 L / 7.3 qt640i xDrive6.9 L / 7.3 qt
Engine Oil Capacity
2.0T4.7 L / 5.0 qt2.0T (340 Hp) PHEV4.7 L / 5.0 qt2.0T PHEV4.7 L / 5.0 qt3.0T V6 AWD5.7 L / 6.0 qt3.6L V6 AWD5.7 L / 6.0 qtCT6-V Blackwing9.5 L / 10.0 qt
620d5.5 L / 5.8 qt630d7.0 L / 7.4 qt630d xDrive7.0 L / 7.4 qt630i5.2 L / 5.5 qt640d xDrive7.0 L / 7.4 qt640i6.5 L / 6.9 qt640i xDrive6.5 L / 6.9 qt
Fuel Capacity
2.0T74.0 L / 19.5 gal2.0T (340 Hp) PHEV59.0 L / 15.6 gal2.0T PHEV59.0 L / 15.6 gal3.0T V6 AWD74.0 L / 19.5 gal3.6L V6 AWD74.0 L / 19.5 galCT6-V Blackwing73.0 L / 19.3 gal
620d66.0 L / 17.4 gal630d66.0 L / 17.4 gal630d xDrive66.0 L / 17.4 gal630i68.0 L / 18.0 gal640d xDrive66.0 L / 17.4 gal640i68.0 L / 18.0 gal640i xDrive68.0 L / 18.0 gal
Passengers
5
5
Payload
620d655 kg / 1444 lbs630d645 kg / 1422 lbs630d xDrive650 kg / 1433 lbs630i665 kg / 1466 lbs640d xDrive675 kg / 1488 lbs640i655 kg / 1444 lbs640i xDrive665 kg / 1466 lbs

Chassis

Brakes | Front
Ventilated discs2.0T13.6 in2.0T PHEV14.5 in
Ventilated discs
Brakes | Rear
Ventilated discs2.0T12.4 in2.0T PHEV13.3 in
Ventilated discs
Power Steering
Electric Steering
Electric Steering
Suspension | Front
Multi-link
Double-wishbone
Suspension | Rear
Multi-link
Multi-link
Tire Size
245/45 R19; 245/40 R202.0T235/50 R18, 245/45 R19, 245/40 R202.0T (340 Hp) PHEVFront wheel tires: 235/50 R18 Rear wheel tires: 265/45 R182.0T PHEV235/50 R183.0T V6 AWD235/50 R18, 245/45 R19, 245/40 R203.6L V6 AWD235/50 R18, 245/45 R19, 245/40 R20CT6-V Blackwing245/40 ZR20
620d225/60 R17 99Y630d225/60 R17 99Y630d xDrive225/60 R17 99Y630i225/60 R17 99Y640d xDrive245/50 R18 100Y640i245/50 R18 100Y640i xDrive245/50 R18 100Y
Turning Circle
2.0T12.2 m / 40.0 ft2.0T (340 Hp) PHEV12.2 m / 40.0 ft2.0T PHEV12.2 m / 40.0 ft3.0T V6 AWD11.3 m / 37.1 ft3.6L V6 AWD12.2 m / 40.0 ft
620d12.3 m / 40.3 ft630d12.3 m / 40.3 ft630d xDrive12.5 m / 41.0 ft630i12.3 m / 40.3 ft640d xDrive12.5 m / 41.0 ft640i12.3 m / 40.3 ft640i xDrive12.5 m / 41.0 ft

Construction

Battery | Capacity
0.5 kWh (gross)
Body Style
2.0T4-door Sedan2.0T (340 Hp) PHEV4-door plug-in hybrid Sedan2.0T PHEV4-door plug-in hybrid Sedan3.0T V6 AWD4-door Sedan3.6L V6 AWD4-door SedanCT6-V Blackwing4-door Sedan
5-door mild-hybrid Sedan

Dimensions

Ground Clearance
138 mm / 5.4 in
Size | Height
2.0T1472 mm / 58.0 in2.0T (340 Hp) PHEV1500 mm / 59.1 in2.0T PHEV1472 mm / 58.0 in3.0T V6 AWD1472 mm / 58.0 in3.6L V6 AWD1472 mm / 58.0 inCT6-V Blackwing1473 mm / 58.0 in
620d1538 mm / 60.6 in630d1538 mm / 60.6 in630d xDrive1540 mm / 60.6 in630i1538 mm / 60.6 in640d xDrive1540 mm / 60.6 in640i1538 mm / 60.6 in640i xDrive1540 mm / 60.6 in
Size | Length
2.0T5184 mm / 204.1 in2.0T (340 Hp) PHEV5179 mm / 203.9 in2.0T PHEV5184 mm / 204.1 in3.0T V6 AWD5184 mm / 204.1 in3.6L V6 AWD5184 mm / 204.1 inCT6-V Blackwing5227 mm / 205.8 in
5091 mm / 200.4 in
Size | Width
2.0T1879 mm / 74.0 in2.0T (340 Hp) PHEV1879 mm / 74.0 in2.0T PHEV1879 mm / 74.0 in3.0T V6 AWD1879 mm / 74.0 in3.6L V6 AWD1879 mm / 74.0 inCT6-V Blackwing1880 mm / 74.0 in
1902 mm / 74.9 in
Track Width | Front
2.0T1610.0 mm / 63.4 in2.0T (340 Hp) PHEV1617.0 mm / 63.7 in2.0T PHEV1610.0 mm / 63.4 in3.0T V6 AWD1610.0 mm / 63.4 in3.6L V6 AWD1610.0 mm / 63.4 inCT6-V Blackwing1610.0 mm / 63.4 in
1615.0 mm / 63.6 in
Track Width | Rear
2.0T1626.0 mm / 64.0 in2.0T (340 Hp) PHEV1640.0 mm / 64.6 in2.0T PHEV1626.0 mm / 64.0 in3.0T V6 AWD1626.0 mm / 64.0 in3.6L V6 AWD1626.0 mm / 64.0 inCT6-V Blackwing1626.0 mm / 64.0 in
620d1647.0 mm / 64.8 in630d1649.0 mm / 64.9 in630d xDrive1647.0 mm / 64.8 in630i1649.0 mm / 64.9 in640d xDrive1647.0 mm / 64.8 in640i1649.0 mm / 64.9 in640i xDrive1647.0 mm / 64.8 in
Weight
2.0T1659.0 kg / 3657.5 lbs2.0T (340 Hp) PHEV2000.0 kg / 4409.2 lbs2.0T PHEV2055.0 kg / 4530.5 lbs3.0T V6 AWD1853.0 kg / 4085.2 lbs3.6L V6 AWD1781.0 kg / 3926.4 lbsCT6-V Blackwing2032.0 kg / 4479.8 lbs
620d1835.0 kg / 4045.5 lbs630d1930.0 kg / 4254.9 lbs630d xDrive1990.0 kg / 4387.2 lbs630i1785.0 kg / 3935.3 lbs640d xDrive2010.0 kg / 4431.3 lbs640i1855.0 kg / 4089.6 lbs640i xDrive1910.0 kg / 4210.8 lbs
Wheel Size
2.0T8J x 18, 8.5J x 19, 8.5J x 202.0T (340 Hp) PHEVFront wheel rims: 18 Rear wheel rims: 182.0T PHEV8J x 183.0T V6 AWD8J x 18, 8.5J x 19J, 8.5J x 203.6L V6 AWD8J x 18, 8.5J x 19, 8.5J x 20CT6-V Blackwing20 in
620d7.5J x 17630d7.5J x 17630d xDrive7.5J x 17630i7.5J x 17640d xDrive8J x 18640i8J x 18640i xDrive8J x 18
Wheelbase
3109 mm / 122.4 in
3070 mm / 120.9 in

Performance

Acceleration | 0 - 100 km/h
620d7.9 sec630d6.1 sec630d xDrive5.9 sec630i6.5 sec640d xDrive5.3 sec640i5.5 sec640i xDrive5.4 sec
Acceleration | 0 - 60 mph
2.0T5.2 sec2.0T (340 Hp) PHEV5.1 sec2.0T PHEV5.2 secCT6-V Blackwing3.8 sec
620d7.5 sec630d5.8 sec630d xDrive5.6 sec630i6.2 sec640d xDrive5.0 sec640i5.2 sec640i xDrive5.1 sec
CO2 Emission
620d116 ~ 120 g/km630d128 ~ 133 g/km630d xDrive135 ~ 140 g/km630i135 ~ 139 g/km640d xDrive141 ~ 147 g/km640i155 ~ 160 g/km640i xDrive166 ~ 170 g/km
Coefficient Of Drag
0.30
620d0.25630d0.25630d xDrive0.25630i0.25640d xDrive0.27640i0.27640i xDrive0.27
Fuel Economy
2.0T9.4 L/100km / 25.0 MPG (combined) | 10.7 L/100km / 22.0 MPG (urban) | 7.8 L/100km / 30.2 MPG (highway)2.0T (340 Hp) PHEV1.7 L/100km / 138.4 MPG (combined)2.0T PHEV9.4 L/100km / 25.0 MPG (combined) | 10.7 L/100km / 22.0 MPG (urban) | 7.8 L/100km / 30.2 MPG (highway)3.0T V6 AWD11.2 L/100km / 21.0 MPG (combined) | 13.1 L/100km / 18.0 MPG (urban) | 9.0 L/100km / 26.1 MPG (highway)3.6L V6 AWD11.2 L/100km / 21.0 MPG (combined) | 13.1 L/100km / 18.0 MPG (urban) | 8.7 L/100km / 27.0 MPG (highway)CT6-V Blackwing16.8 L/100km / 14.0 MPG (urban) | 9.4 L/100km / 25.0 MPG (highway)
620d4.4 L/100km / 53.5 MPG (combined) | 5.0 L/100km / 47.0 MPG (urban) | 4.1 L/100km / 57.4 MPG (highway)630d4.9 L/100km / 48.0 MPG (combined) | 6.1 L/100km / 38.6 MPG (urban) | 4.2 L/100km / 56.0 MPG (highway)630d xDrive5.1 L/100km / 46.1 MPG (combined) | 6.4 L/100km / 36.8 MPG (urban) | 4.4 L/100km / 53.5 MPG (highway)630i5.9 L/100km / 39.9 MPG (combined) | 7.2 L/100km / 32.7 MPG (urban) | 5.2 L/100km / 45.2 MPG (highway)640d xDrive5.4 L/100km / 43.6 MPG (combined) | 6.7 L/100km / 35.1 MPG (urban) | 4.6 L/100km / 51.1 MPG (highway)640i6.8 L/100km / 34.6 MPG (combined) | 8.7 L/100km / 27.0 MPG (urban) | 5.7 L/100km / 41.3 MPG (highway)640i xDrive7.2 L/100km / 32.7 MPG (combined) | 9.4 L/100km / 25.0 MPG (urban) | 6.0 L/100km / 39.2 MPG (highway)
Top Speed
620d220.0 km/h / 136.7 mph630d250.0 km/h / 155.3 mph630d xDrive250.0 km/h / 155.3 mph630i250.0 km/h / 155.3 mph640d xDrive250.0 km/h / 155.3 mph640i250.0 km/h / 155.3 mph640i xDrive250.0 km/h / 155.3 mph
Towing Capacity
750 kg / 1653 lbs (w/o brakes) | 2100 kg / 4630 lbs (w/ brakes @ 12% gradient)

Powertrain

Drivetrain Layout
2.0TFront-engine (longitudinal), Rear-wheel drive2.0T (340 Hp) PHEVRear-wheel drive2.0T PHEVFront-engine (longitudinal), Rear-wheel drive3.0T V6 AWDFront-engine (longitudinal), All-wheel drive3.6L V6 AWDFront-engine (longitudinal), All-wheel driveCT6-V BlackwingAll-wheel drive
620dFront-engine (longitudinal), Rear-wheel drive630dFront-engine (longitudinal), Rear-wheel drive630d xDriveFront-engine (longitudinal), All-wheel drive630iFront-engine (longitudinal), Rear-wheel drive640d xDriveFront-engine (longitudinal), All-wheel drive640iFront-engine (longitudinal), Rear-wheel drive640i xDriveFront-engine (longitudinal), All-wheel drive
Emission Standard
EURO 6d
Engine
2.0TLTG2.0T (340 Hp) PHEVLTG2.0T PHEVLTG3.0T V6 AWDLGW3.6L V6 AWDLGXCT6-V BlackwingLTA
620dB47D20B630dB57D30B630d xDriveB57D30B630iB48B20B640d xDriveB57D30B640iB58B30C640i xDriveB58B30C
Engine | Bore
2.0T86.0 mm / 3.4 in2.0T (340 Hp) PHEV86.0 mm / 3.4 in2.0T PHEV86.0 mm / 3.4 in3.0T V6 AWD86.0 mm / 3.4 in3.6L V6 AWD95.0 mm / 3.7 inCT6-V Blackwing86.0 mm / 3.4 in
620d84.0 mm / 3.3 in630d84.0 mm / 3.3 in630d xDrive84.0 mm / 3.3 in630i82.0 mm / 3.2 in640d xDrive84.0 mm / 3.3 in640i82.0 mm / 3.2 in640i xDrive82.0 mm / 3.2 in
Engine | Compression Ratio
2.0T9.5:12.0T (340 Hp) PHEV9.5:12.0T PHEV9.5:13.0T V6 AWD9.8:13.6L V6 AWD11.5:1CT6-V Blackwing9.8:1
620d16.5:1630d16.5:1630d xDrive16.5:1630i10.2:1640d xDrive16.5:1640i11.0:1640i xDrive11.0:1
Engine | Displacement
2.0T2.0 L / 121.9 cu-in / 1998.0 cc2.0T (340 Hp) PHEV2.0 L / 121.9 cu-in / 1998.0 cc2.0T PHEV2.0 L / 121.9 cu-in / 1998.0 cc3.0T V6 AWD3.0 L / 182.5 cu-in / 2990.0 cc3.6L V6 AWD3.6 L / 222.7 cu-in / 3649.0 ccCT6-V Blackwing4.2 L / 255.8 cu-in / 4192.0 cc
620d2.0 L / 121.7 cu-in / 1995.0 cc630d3.0 L / 182.6 cu-in / 2993.0 cc630d xDrive3.0 L / 182.6 cu-in / 2993.0 cc630i2.0 L / 121.9 cu-in / 1998.0 cc640d xDrive3.0 L / 182.6 cu-in / 2993.0 cc640i3.0 L / 182.9 cu-in / 2998.0 cc640i xDrive3.0 L / 182.9 cu-in / 2998.0 cc
Engine | Power
2.0T269.0 hp / 200.6 kW @ 5500 rpm2.0T (340 Hp) PHEV276.0 hp / 205.8 kW @ 5300 rpm + 116.0 hp / 86.5 kW (electric motor)2.0T PHEV265.0 hp / 197.6 kW + 100.0 hp / 74.6 kW (electric motor)3.0T V6 AWD409.0 hp / 305.0 kW @ 5700 rpm3.6L V6 AWD340.0 hp / 253.5 kW @ 6800 rpmCT6-V Blackwing550.0 hp / 410.1 kW @ 5000 rpm
620d190.0 hp / 141.7 kW @ 4000 rpm + 11.0 hp / 8.2 kW (electric motor)630d286.0 hp / 213.3 kW @ 4000 rpm + 11.0 hp / 8.2 kW (electric motor)630d xDrive286.0 hp / 213.3 kW @ 4000 rpm + 11.0 hp / 8.2 kW (electric motor)630i258.0 hp / 192.4 kW @ 5000-6500 rpm + 11.0 hp / 8.2 kW (electric motor)640d xDrive340.0 hp / 253.5 kW @ 4400 rpm + 11.0 hp / 8.2 kW (electric motor)640i333.0 hp / 248.3 kW @ 5500-6250 rpm + 11.0 hp / 8.2 kW (electric motor)640i xDrive333.0 hp / 248.3 kW @ 5500-6250 rpm + 11.0 hp / 8.2 kW (electric motor)
Engine | Redline
2.0T7000 rpm2.0T (340 Hp) PHEV7000 rpm2.0T PHEV7000 rpm3.0T V6 AWD6500 rpm3.6L V6 AWD7200 rpm
Engine | Specific Output
2.0T134.6 hp/L / 2.2 hp/cu-in2.0T (340 Hp) PHEV138.1 hp/L / 2.3 hp/cu-in2.0T PHEV132.6 hp/L / 2.2 hp/cu-in3.0T V6 AWD136.8 hp/L / 2.2 hp/cu-in3.6L V6 AWD93.2 hp/L / 1.5 hp/cu-inCT6-V Blackwing131.2 hp/L / 2.2 hp/cu-in
620d95.2 hp/L / 1.6 hp/cu-in630d95.6 hp/L / 1.6 hp/cu-in630d xDrive95.6 hp/L / 1.6 hp/cu-in630i129.1 hp/L / 2.1 hp/cu-in640d xDrive113.6 hp/L / 1.9 hp/cu-in640i111.1 hp/L / 1.8 hp/cu-in640i xDrive111.1 hp/L / 1.8 hp/cu-in
Engine | Stroke
2.0T86.0 mm / 3.4 in2.0T (340 Hp) PHEV86.0 mm / 3.4 in2.0T PHEV86.0 mm / 3.4 in3.0T V6 AWD85.6 mm / 3.4 in3.6L V6 AWD85.8 mm / 3.4 inCT6-V Blackwing90.2 mm / 3.6 in
620d90.0 mm / 3.5 in630d90.0 mm / 3.5 in630d xDrive90.0 mm / 3.5 in630i94.6 mm / 3.7 in640d xDrive90.0 mm / 3.5 in640i94.6 mm / 3.7 in640i xDrive94.6 mm / 3.7 in
Engine | Torque
2.0T400 Nm / 295.0 lb-ft @ 3000-4500 rpm2.0T (340 Hp) PHEV400 Nm / 295.0 lb-ft @ 3000-4300 rpm + 270 Nm / 199.1 lb-ft2.0T PHEV400 Nm / 295.0 lb-ft3.0T V6 AWD542 Nm / 399.8 lb-ft @ 2500-5100 rpm3.6L V6 AWD385 Nm / 284.0 lb-ft @ 5300 rpmCT6-V Blackwing868 Nm / 640.2 lb-ft @ 3400 rpm
620d400 Nm / 295.0 lb-ft @ 1750-2500 rpm630d650 Nm / 479.4 lb-ft @ 1500-2500 rpm630d xDrive650 Nm / 479.4 lb-ft @ 1500-2500 rpm630i400 Nm / 295.0 lb-ft @ 1550-4400 rpm640d xDrive700 Nm / 516.3 lb-ft @ 1750-2250 rpm640i450 Nm / 331.9 lb-ft @ 1600-4800 rpm640i xDrive450 Nm / 331.9 lb-ft @ 1600-4800 rpm
Engine | Type
2.0TTurbocharged direct-injected petrol inline-4 DOHC engine with 4 values per cylinder2.0T (340 Hp) PHEVTurbocharged direct-injected petrol inline-4 engine2.0T PHEVTurbocharged direct-injected petrol inline-4 DOHC engine with 4 values per cylinder3.0T V6 AWDBi-turbocharged direct-injected petrol V6 DOHC engine with 4 values per cylinder3.6L V6 AWDNaturally-aspirated direct-injected petrol V6 DOHC engine with 4 values per cylinderCT6-V BlackwingBi-turbocharged direct-injected petrol V8 DOHC engine with 4 values per cylinder
620dTwin-scroll turbocharged commonrail diesel inline-4 engine with 4 values per cylinder630dTwin-scroll turbocharged commonrail diesel inline-6 engine with 4 values per cylinder630d xDriveTwin-scroll turbocharged commonrail diesel inline-6 engine with 4 values per cylinder630iTwin-scroll turbocharged direct-injected petrol inline-4 engine with 4 values per cylinder640d xDriveTwin-scroll turbocharged commonrail diesel inline-6 engine with 4 values per cylinder640iTwin-scroll turbocharged direct-injected petrol inline-6 engine with 4 values per cylinder640i xDriveTwin-scroll turbocharged direct-injected petrol inline-6 engine with 4 values per cylinder
Fuel Capacity
73.8 L
Transmission | Gears
10-speed2.0T8-speed2.0T (340 Hp) PHEV8-speed2.0T PHEV8-speed3.0T V6 AWD8-speed3.6L V6 AWD8-speedCT6-V Blackwing10-speed
8-speed
Transmission | Type
Automatic2.0TAutomatic Hydra-Matic2.0T (340 Hp) PHEVe-CVT2.0T PHEVe-CVT3.0T V6 AWDAutomatic Hydra-Matic3.6L V6 AWDAutomatic Hydra-MaticCT6-V BlackwingAutomatic
Automatic Steptronic

Production

Availability
2.0T2016 ~ 20202.0T (340 Hp) PHEV2016 ~ 20202.0T PHEV2017 ~ 20183.0T V6 AWD2016 ~ 20203.6L V6 AWD2016 ~ 2020CT6-V Blackwing2018 ~ 2020
2020
Debut
2015 New York Auto Show
Facelift
2020-05-27
Made In
US: Michigan; China: Shanghai
Germany, Malaysia
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