The most successful 7 Series in the history of BMW is once again setting standards in the luxury class as of spring 2005. Offering significantly enhanced performance on the same fuel consumption - and in some cases on
even less fuel -, with optimised features on the chassis and suspension,
with its enhanced iDrive control system and upgraded equipment,
the BMW 7 Series once again marks its claim to leadership in the market.
Refinement in the design of the car emphasises the even higher level of
driving dynamics and sporting performance at very first sight. And unmistakable presence, finally, gives the BMW 7 Series its elegant and charismatic character quite unparalleled in the market.
Five out of six engines either brand-new or thoroughly updated.
With the exception of the top-end V12 in the BMW 760Li, the BMW 7 Series boasts a largely new engine range as of spring 2005. Looking first at the models with an eight-cylinder petrol engine, the BMW 750i/Li and the 740i/Li replace the former 745i/Li and 735i/Li. The BMW 740d, in turn, is making way for the BMW 745d with its all-new eight-cylinder diesel.
The straight-six diesel in the BMW 730d has been fundamentally updated. And the entry-level BMW 730i/Li now features the straight-six petrol engine carried over from the BMW 630i with its composite magnesium/aluminium crankcase.
All models come as standard with six-speed automatic transmission complete with Steptronic transmission management. At the same time all engines
stand out in particular through their high level of specific output, a wide useful speed range, a powerful torque curve, supreme motoring refinement, and moderate fuel consumption.
BMW 750i/Li and 740i/Li: more power on the same amount of fuel.
The "core" engines featured in BMW's luxury performance saloons, that is
in more than 60 per cent of all BMW 7 Series the world over - BMW's superior and refined eight-cylinder petrol engines with fully variable VALVETRONIC valve drive - now come with even larger displacement and develop 270 kW/367 hp and, respectively, 225 kW/306 hp, with maximum torque in each case of 490 Nm/361 lb-ft and 390 Nm/287 lb-ft. Despite the significant increase in engine output and torque and the equally impressive improvement of performance, however, fuel consumption remains virtually unchanged.
BMW 745d and 730d: a quantum leap in diesel engine technology.
Introducing the all-aluminium crankcase, third-generation common rail technology with piezo fuel injection and EU-4 emission management technology with a particle filter featured as standard, BMW's diesel engines in
the 7 Series mark a genuine leap in technology: The eight-cylinder diesel engine in the BMW 745d is an all-new development offering 220 kW/300 hp  maximum output and 700 Nm/516 peak torque from 1,750-2,500 rpm as the new benchmark in luxury saloon motoring with a V8 diesel engine. The high-torque straight-six diesel engine in the BMW 730d, in turn, which has been thoroughly revised and updated from the ground up, now develops maximum output of 170 kW/231 hp together with peak torque of 520 Nm/383 lb-ft consistently maintained from 2,000-2,750 rpm.
Engine weight on the BMW 745d and 730d is down by 30 and, respectively, 25 kg thanks to the all-aluminium crankcase. As a result, the two diesel
models offer a new standard of agility and dynamic performance for diesel cars in the luxury class.
Despite the significant increase in output and torque, both models are even more fuel-efficient than before.
BMW 730i/Li: straight-six petrol engine with composite
magnesium/aluminium crankcase.
The new straight-six petrol engine with its composite magnesium/aluminium crankcase and fully variable VALVETRONIC valve drive introduced for
the first time in the BMW 630i is now also available in the BMW 7 Series.
Offering the highest output per litre and the best power-to-weight ratio,
this is the most innovative petrol engine currently built in large numbers.
Ten kg lighter than its predecessor, the new engine develops maximum output of 190 kW/258 hp together with maximum torque of 300 Nm/221 lb-ft,
consuming 4.7 per cent less fuel than the former BMW 730i despite an increase in power by no less than 12 percent.

BMW 760i/Li: twelve-cylinder power unit with direct petrol injection and VALVETRONIC - a truly unique combination.
Introduced as recently as in 2003 in the BMW 760i/Li, the 12-cylinder power unit remains unchanged, developing maximum output of 327 kW/445 hp
and maximum torque of 600 Nm/442 lb-ft. Combining four-valve technology, VALVETRONIC valve management, double-VANOS and direct petrol injection, the BMW 760i/Li remains unique in the world market. VALVETRONIC is responsible in particular for the engine's extremely low fuel consumption under part load, direct fuel injection, in turn, serving to boost both torque and output. 
New power units as part of BMW's engine initiative for superior
performance on the road: More power and greater efficiency, lower fuel consumption and emissions reduced to a minimum.
Running parallel to the Company's ongoing model initiative, BMW's engine initiative proves the core competence of the brand in the construction of
truly unusual power units offering supreme performance and cutting-edge technology.
Examples of this superiority last year were the new 3.0-litre straight-six petrol engine with its composite magnesium/aluminium crankcase, the 3.0-litre straight-six diesel with variable Twin Turbo Technology in the BMW 535d, and the 5.0-litre V10 high-speed power unit in the BMW M5.
In the development of new BMW power units, all parameters and components are checked for their maximum potential, with conventional principles and concepts being put to the test once again. The result is innovative materials, new machining and production processes, and optimised production concepts. The BMW customer, in turn, receives far more powerful, much lighter, and far cleaner engines with emissions reduced to a minimum.
This is also clearly borne out by the power units now being introduced on a broad scale in the BMW 7 Series and offering an even more superior driving experience.
Efficient Dynamics - overcoming conflicts of interest.
Benefitting from more power on less fuel, increasing agility and lightfooted handling, and intensifying the feeling of "Efficient Dynamics" experienced by the customer - these are the guiding principles underlying all developments and innovations by BMW, also in the construction of engines. In a nutshell, Efficient Dynamics means consistently solving conflicts of interest - because in conventional terms more power also means more fuel, more comfort means more weight, and therefore once again more fuel, and so on and so forth. Particularly in the case of large luxury saloons, such as the BMW 7 Series, solving these conflicts of interest is a most significant but rewarding challenge.