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BMW 5 Series Gran Turismo
Classic GT substance in contemporary SAV flavour
(4/9 >>>>)

  Engines

BMW inline 6 cylinder, gasoline, skeleton, profile view: crankshaft with conrod, piston, valves, direct injector, camshafts and turbocharger.

BMW inline 6 cylinder, gasoline, skeleton view: crankshaft with conrods, pistons, valves and camshafts.

535i: inline-6 with TwinPower Turbo, HPI and Valvetronic.

Three engine choices will be available at the beginning: two gasoline ones (535i: 3.0-litre straight-six, 225 kW/306 hp / 302 bhp, or 550i: 4.4-litre V8, 300 kW/407 hp 402 bhp) and a diesel (530d: 3.0-litre straight-six diesel, 180 kW/245 hp, 241 bhp).

All engines comes with a standard 8-speed automatic transmission and comply with the EU5 emission standard.

The drivetrain technology featured on the new BMW 5 Series Gran Turismo benefits from BMW's EfficentDynamics technology.

  535i

The newly developed straight-six gasoline engine combines for the first time turbocharger technology with High Precision (direct) Injection (HPI), and an optimised variable VALVETRONIC management.

The VALVETRONIC system is fully integrated in the cylinder head and offers an infinite control and adjustment of valve stroke on the intake side, reducing throttle losses in the charge cycle process to a minimum and optimising engine response since the air mass required for the combustion process is controlled in the engine itself.

535i: the twin scroll principle separates the ducts of three cylinders at a time

535i: the twin scroll separates the ducts of 3 cylinders at a time.

The turbocharger system adopts the twin scroll principle to separate the ducts of three cylinders at a time, both in the exhaust manifold and the turbocharger. High Precision Injection has also been enhanced in the new six-cylinder, delivering fuel through multi-hole valves at an injection pressure reaching up to 200 bar. This ensures more precise dosage of the fuel injected, a cleaner combustion process as well as the cooling effect on the fuel/air mixture, extracting more power thanks to the increase of the compression ratio to a higher level than in a turbocharged engine with the older manifold injection (also called port-injection, as the injection and fuel/air mixing used to occur before entering the combustion chambers).

Displacing 3.0 litres, the new six-cylinder develops a maximum output of 225 kW/306 hp (302 bhp) at 5,800 rpm, with peak torque (400 Newton-metres/295 lb-ft) is available from 1,200 to 5,000 rpm, allowing the BMW 535i Gran Turismo to accelerate from a standstill to 100 km/h in 6.3 seconds, on the way to a top speed limited electronically to 250 km/h or 155 mph.

The average fuel consumption in the EU test cycle is 8.9 litres/100 kilometres, equal to 31.7 mpg imp, 26.4 mpg US, 11.23 km per litre, with a CO2 rating of 209 grams per kilometre.

  550i

The second petrol (gasoline) choice comes with the 4.4 litres V8 engine combining TwinPower Turbo technology with HPI, developing maximum output of 300 kW/407 hp (402 bhp) from 5,500 to 6,400 rpm. Peak torque is 600 Newton-metres/442 lb-ft from 1,750 to 4,500 rpm.

BMW 550i GT: driving shot, front-side view.

BMW 550i GT: V8 with two turbos and catalytic converters within the V-section between the two rows of cylinders.

BMW says that as the world’s only gasoline V8 engine with two turbochargers and catalytic converters arranged within the V-section between the two rows of cylinders, the big advantage of this positioning is the compact dimensions with optimised cross-sections on the components involved in the charge cycle process, minimising pressure losses on both the intake and exhaust sides.

The principle of two turbochargers positioned directly between the two rows of cylinders, each supplying four cylinders with compressed air, offers a better response to the gas pedal commands, without the turbo gap (sudden surge of power in older turbo systems).

The BMW 550i Gran Turismo accelerates from a standstill to 100 km/h in 5.5 seconds, with top speed limited electronically to 250 km/h or 155 mph. Average fuel consumption in the EU test cycle is 11.2 litres/100 kilometres, equal to 25.2 mpg imp, 21 mpg US, or 8.92 km per litre, while CO2 emissions are 263 grams per kilometre.

  530d

The 3.0-litre, straight-six diesel in the 530d Gran Turismo comes with an all-aluminium crankcase and an upgraded turbocharger system with variable intake geometry. Its latest generation of common-rail fuel injection using piezo-injectors operates at a maximum pressure of 1,800 bar, generating a maximum output of 180 kW/245 hp (241 bhp) at 4,000 rpm, with peak torque of 540 Newton-metres/398 lb ft from 1,750 rpm.

BMW 530d engine, turbo: The turbine blades geometry is adjusted by an electrical motor.

The turbine blades geometry is adjusted by an electrical motor.

Modified compressor and turbine rotors give the turbocharger better thermodynamic qualities, while an electrical motor adjusting the turbine blades with precision and minimum delay, for a more spontaneous and direct engine response at low revs as well as better performance under full load.

The diesel particulates filter operates maintenance-free and does not require any additives. The regeneration phases required at regular intervals are initiated by a subsequent injection process activated by engine management

The BMW 530d Gran Turismo accelerates to 100 km/h in 6.9 seconds, reaches a top speed of 240 km/h or 149 mph, with an average fuel consumption of 6.5 litres/100 kilometres (equal to 43.5 mpg imp, 36.18 mpg US, 15.38 km per litre) in the EU test cycle. The CO2 rating is 173 grams per kilometre.

  Transmission

All model variants come as standard with the eight-speed automatic transmission, so far available only in the V12 BMW 760i sedan. This configuration provides additional gears and a wider range of gear increments without negative effect on the size, weight, and inner efficiency of the system.

With the wider range of increments, the driver can use the highest gear at far lower engine speeds, while the gaps between the individual gears are smaller than before despite the broader range of increments. This enhances gearshift comfort as changing gears involves only a small change in engine speed.

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