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7 Series - E65/E66 (2001 - 2008) - Power and Brilliance

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7 Series - E65/E66 (2001 - 2008)
Power and Brilliance
730d, 740d, 730(L)i and 760(L)i
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Prodigious power
At the heart of the launch models are two of the most refined and advanced V8 engines in the world.
Power is up by 14 per cent compared to the previous models (735i 272 bhp, 745i 333 bhp) and fuel consumption reduced by a similar amount (735i 26.3 mpg, 745i 25.9 mpg).

Both engines have 32 valves, Double- VANOS variable valve timing and BMW's new variable valve lift technology called VALVETRONIC.
The latter system allows the inlet valves to regulate the amount of fuel/air mixture entering the cylinders and so negates the need for a throttle butterfly.
This increases efficiency and reduces fuel consumption.
A world first is BMW's new variable length inlet manifold system, which allows optimum breathing at all engine speeds.

Performance is impressive, the 735i launching from standstill to 62 mph in 7.5 seconds and the 745i in 6.3 seconds.
Maximum speeds are both limited to 155 mph.
Mated to both engines is another world first for a series production car - a six speed automatic gearbox.
This has three modes; drive, sport and manual.
In manual mode, gears are shifted by using the Steptronic buttons on the steering wheel.

Dynamic brilliance
An extremely stiff chassis and a new active suspension system are complemented by the latest in electronic driving stability aids, to serve up the ultimate driving experience for a luxury car.
But however hard the car is driven, the refinement and ride quality remain sublime.
Dynamic Drive active anti-roll is a standard feature.
Sensors detect when the car begins to corner and hydraulic actuators rotate the asymmetric roll bars to lift the car on the outside of the bend.
This does not load the suspension (like some other systems) so the ride quality remains perfect.
Body roll is reduced dramatically, although not eliminated, as this feels rather unnatural, and helps to keep all occupants in even greater comfort.
An optional Electronic Damper Control system ( EDC-K) has a Sport and Comfort setting, but in each mode it constantly adjusts the damping rate to suit the driving conditions at any given moment.
In Sport mode the dampers are stiffer and the steering has more weight.
As well as BMW's highly praised electronic active safety systems, such as Dynamic Stability Control ( DSC), Dynamic Traction Control ( DTC) and Cornering Braking Control ( CBC), there is a new one called Fading Brake Support (FBC).
Temperature sensors in the brake discs detect excessive heat build-up and apply extra force to the discs to compensate for any fade.
Under really extreme driving conditions, when disc temperature exceeds 600ÂșC, engine torque is electronically reduced by 25 per cent to allow the brakes to cool.

Last Updated on Monday, 12 April 2010 14:36  

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