Compare Capacities on 2018 BMW 7 Series ALPINA B7 xDrive Sedan 2017 Rolls-Royce Ghost Sedan

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Vehicle	2018 BMW 7 Series ALPINA B7 xDrive Sedan	2017 Rolls-Royce Ghost Sedan
General
Body Style	Sedan,4-door Large Passenger Car	Sedan,4-door Large Passenger Car
EPA Classification	Large Cars	Large Cars
Drive Train
City MPG	16	12
Combined MPG	19	14
Displacement (CC)	4.4 L/268	6.6 L/402
Driveline	All Wheel Drive	Rear Wheel Drive
Final Drive Ratio	2.81	2.81
Fuel Capacity (gal)	20.6	21.8
Fuel System	Gasoline Direct Injection	Gasoline Direct Injection
Fuel Type	Twin Turbo Premium Unleaded V-8	Twin Turbo Premium Unleaded V-12
Highway MPG	25	19
Horsepower @ RPM	600 @ 5750	563 @ 5250
Torque @ RPM	590 @ 3000	605 @ 1500
Transmission Speeds	8	8
Transmission Type	Automatic w/OD	Automatic w/OD
Type of Engine	8 Cylinder Engine/Turbocharged	12 Cylinder Engine/Turbocharged
Exterior
Curb weight (lbs)	n/a	5490
Overall Height (in)	58.2	61
Overall Length (in)	206.6	212.6
Overall Width (in)	74.8	76.7
Wheelbase (in)	126.4	129.7
Interior - Cargo - Carrying
Trunk Volume (cu ft)	18.2	17.3
Interior - Passengers
Headroom front (in)	39.9	40.6
Headroom rear (in)	38.9	39
Leg room front (in)	41.4	41.7
Leg room rear (in)	44.4	42.3
Passenger Volume	n/a	111.5
Seating Capacity - Maximum	5	5
Seating capacity - Standard	4	5
Shoulder room front (in)	61.2	59.4
Shoulder room rear (in)	61	55.8
Suspension
Front suspension	Double Wishbone	Double Wishbone
Rear Suspension	Multi-Link	Multi-Link
Track Front	63.7	63.9
Track Rear	64.8	65.4
Turning Radius
Steering Diameter Left	42.4	44
Warranty
Powertrain Miles	50,000	Unlimited
Powertrain Time (Months)	48	48
Warranty - Basic Miles	50,000	Unlimited
Warranty - Basic Time (Months)	48	48

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