2012-2013 BMW 5 Series Gran Turismo (F07) 550i (450 Hp) xDrive Steptronic

Technical Specifications

Brand BMW
Model 5 Series
Generation 5 Series Gran Turismo (F07)
Type 550i (450 Hp) xDrive Steptronic
Start of production 2012
End of production 2013
Powertrain Architecture Internal Combustion engine
Body type Grand Tourer
Seats 5
Doors 5
Fuel consumption (urban) 13.1 l/100 km (18 US mpg, 21.6 UK mpg, 7.6 km/l)
Fuel consumption (extra urban) 7.6 l/100 km (30.9 US mpg, 37.2 UK mpg, 13.2 km/l)
Fuel consumption (combined) 9.6 l/100 km (24.5 US mpg, 29.4 UK mpg, 10.4 km/l)
CO2 emissions 224 g/km
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 4.8 sec
Acceleration 0 – 62 mph 4.8 sec
Acceleration 0 – 60 mph 4.6 sec
Maximum speed 250 km/h (155.34 mph)
Emission standard Euro 5
Weight-to-power ratio 4.8 kg/Hp, 210.3 Hp/tonne
Weight-to-torque ratio 3.3 kg/Nm, 303.7 Nm/tonne
Power 450 Hp @ 5500 rpm
Power per litre 102.4 Hp/l
Torque 650 Nm @ 2000-4500 rpm (479.42 lb.-ft. @ 2000-4500 rpm)
Engine layout Front, Longitudinal
Engine Model/Code N63B44B
Engine displacement 4395 cm3 (268.2 cu. in.)
Number of cylinders 8
Engine configuration V-engine
Cylinder Bore 89 mm (3.5 in.)
Piston Stroke 88.3 mm (3.48 in.)
Compression ratio 10:1
Number of valves per cylinder 4
Fuel injection system Direct injection
Engine aspiration Twin-power turbo, Intercooler
Engine oil capacity 9 l (9.51 US qt | 7.92 UK qt)
Coolant 10.6 l (11.2 US qt | 9.33 UK qt)
Kerb Weight 2140 kg (4717.89 lbs.)
Max. weight 2750 kg (6062.71 lbs.)
Max load 610 kg (1344.82 lbs.)
Trunk (boot) space – minimum 440 l (15.54 cu. ft.)
Trunk (boot) space – maximum 1700 l (60.03 cu. ft.)
Fuel tank capacity 70 l (18.49 US gal | 15.4 UK gal)
Max. roof load 75 kg (165.35 lbs.)
Permitted trailer load with brakes (12%) 2100 kg (4629.71 lbs.)
Permitted trailer load without brakes 750 kg (1653.47 lbs.)
Permitted towbar download 100 kg (220.46 lbs.)
Length 4998 mm (196.77 in.)
Width 1901 mm (74.84 in.)
Height 1559 mm (61.38 in.)
Wheelbase 3070 mm (120.87 in.)
Front track 1621 mm (63.82 in.)
Rear (Back) track 1636 mm (64.41 in.)
Ride height (ground clearance) 151 mm (5.94 in.)
Drag coefficient (Cd) 0.32
Minimum turning circle (turning diameter) 12.2 m (40.03 ft.)
Drive wheel All wheel drive (4×4)
Number of gears and type of gearbox 8 gears, automatic transmission Steptronic
Front suspension Double wishbone
Rear suspension Independent multi-link suspension
Front brakes Ventilated discs
Rear brakes Ventilated discs
Assisting systems ABS (Anti-lock braking system)
Steering type Steering rack and pinion
Power steering Electric Steering
Tires size 245/45 R19 98Y RSC; 275/40 R19 101Y RSC
Wheel rims size 8.5J x 19; 9.5J x 19

The BMW 5 Series Gran Turismo (F07) 550i xDrive Steptronic, produced from 2012 to 2013, was the performance leader within the F07 Gran Turismo range. It aimed to combine the luxury of a sedan with the practicality of a hatchback and the all-weather capability of BMW’s xDrive all-wheel-drive system. This variant occupied the premium segment of the 5 Series GT lineup, offering significantly more power than the 535i and 528i models. It was targeted towards buyers seeking a refined, powerful, and technologically advanced vehicle for long-distance travel.

Powertrain & Engine Architecture

The 550i xDrive Steptronic is powered by the N63B44B engine, a 4.4-liter twin-turbocharged V8. This engine delivers 450 horsepower at 5500 rpm and 650 Nm (479.42 lb.-ft.) of torque between 2000 and 4500 rpm. The N63 utilizes direct fuel injection for precise fuel delivery and optimized combustion. The twin-turbocharger setup, featuring twin-scroll technology, minimizes turbo lag and provides a broad torque curve. The engine’s valvetrain incorporates double-VANOS (variable valve timing) for both intake and exhaust valves, enhancing efficiency and responsiveness. The engine is paired with the ZF 8HP70 eight-speed automatic transmission, branded as “Steptronic” by BMW. This transmission offers smooth, quick shifts and contributes to both performance and fuel economy. The xDrive all-wheel-drive system intelligently distributes power between the front and rear axles, maximizing traction and stability.

Driving Characteristics

The 550i xDrive Steptronic delivers strong acceleration, achieving 0-60 mph in approximately 4.6 seconds. The eight-speed automatic transmission provides seamless gear changes, with the option for manual control. The xDrive system ensures excellent grip, particularly in adverse weather conditions. While the Gran Turismo’s larger size and weight (2140 kg / 4717.89 lbs) are noticeable compared to the standard 5 Series sedan, the powerful V8 engine compensates for this, providing ample power for overtaking and maintaining high speeds. The steering is precise and well-weighted, offering good feedback. The suspension, tuned for comfort, effectively absorbs road imperfections, making long journeys more comfortable.

Equipment & Trim Levels

The 550i xDrive Steptronic came well-equipped as standard. Interior features included leather upholstery, power-adjustable heated front seats with memory function, a premium sound system, a navigation system with iDrive controller, and a panoramic sunroof. Standard safety features included ABS, stability control, traction control, and a comprehensive airbag system. Optional extras included adaptive cruise control, a head-up display, active steering, and upgraded interior trim options. A defining feature of the Gran Turismo was its two-piece tailgate, offering both a traditional trunk opening and a large hatchback-style opening for increased cargo versatility.

Chassis & Braking

The F07 Gran Turismo featured a robust chassis designed to handle the increased weight and power of the 550i variant. The front suspension utilized a double wishbone design, while the rear employed an independent multi-link setup. This configuration balanced comfort and handling. The 550i xDrive Steptronic was equipped with ventilated disc brakes on all four wheels, providing ample stopping power. The ABS (Anti-lock Braking System) and stability control systems further enhanced safety and control. The steering system employed electric power steering, offering precise and responsive steering feel.

Market Reception & Comparison

The 5 Series Gran Turismo, and particularly the 550i xDrive Steptronic, received mixed reviews. While praised for its luxurious interior, powerful engine, and versatile cargo space, it was often criticized for its unconventional styling and higher price point compared to the standard 5 Series sedan. Compared to the 535i, the 550i offered significantly more power but at a substantial cost increase. The 535i was often considered a more balanced option for buyers prioritizing fuel efficiency and value. The 550i’s fuel economy, while respectable for a V8, was lower than that of the four- and six-cylinder models. Reliability reports suggest the N63 engine, while powerful, can be prone to certain issues, such as oil leaks and turbocharger failures, requiring diligent maintenance.

Legacy

The BMW 5 Series Gran Turismo (F07) was a relatively short-lived model. However, the 550i xDrive Steptronic remains a desirable vehicle for enthusiasts seeking a unique and powerful grand tourer. The N63 engine is highly regarded for its performance and sound. On the used car market, well-maintained examples of the 550i xDrive Steptronic command a premium price. The Gran Turismo’s distinctive styling and spacious interior continue to appeal to buyers looking for a vehicle that stands out. Its blend of luxury, performance, and practicality secures its place as a unique chapter in BMW’s history.

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