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6 Series Cabrio - E64 (2004 - 2007)

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6 Series Cabrio - E64 (2004 - 2007)
Design
Lightweight and Drivetrain
Driving Technology and Safety
Specifications
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The new BMW 6 Series Convertible

The latest chapter in BMW's exciting new car launch programme opens in the UK in March 2004.
The arrival of the brand new 6 Series range sees BMW's first 6 Series Convertible team up with its 645Ci Coupé cousin.

BMW's distinguished reputation for producing dynamic and engaging cars remains a fundamental consideration in the launch of any new model.
This philosophy has, over the decades, produced some outstanding performance models: the 328 from the 'thirties, the 507 roadster of the 'fifties, the 3.0CSL in the 'seventies, the original 6 Series and M3 in the 'eighties, the 1998 M Coupé, and the M3 CSL and Z4 in 2003.
The BMW 645Ci Convertible joins that pulse-quickening line-up as BMW's first large luxury performance cabriolet in half a century.
6_e64_11

The 6 Series Convertible provides a tempting blend of performance, practicality, style and modern technologies at a price that appears to hail from a past decade.
If ever a £55,355 outlay could be called a bargain then the price tag hits the mark.
An award-winning V8 engine, lightweight materials, class-leading driving dynamics, seamless six-speed transmission and a truly innovative roof concept complement head-turning looks and four seat accommodation.
The new 6 Series Convertible ticks all the boxes and sets a new standard in the convertible market.



Key highlights
Desirability
Casablanca or Cadwell Park? Grand touring or sports car? You decide, but around 800 owners in the UK per year will experience a brand new 645Ci Convertible and its unique fusion of dynamic abilities, style and practicality.

New market segment
The 645Ci Convertible heralds BMW's long-awaited return into the premium open 2+2 arena, at a time when world demand for luxury performance cars is on a high and the UK market for specialist sports cars has increased threefold over the past decade.

Chassis integrity
Developed as a unique project alongside the 6 Series Coupé, the 645Ci Convertible is light, safe and torsionally rigid.
From an occupant's perspective it is effectively indistinguishable in these respects from the Coupé.

Innovative design
The stylish new fin structure convertible roof is unique in forming a genuinely coupé-like rear silhouette whilst achieving maximum practicality and visibility.

Intelligent lightweight design
The 6 Series Convertible is the first car in volume production that features four different bodywork materials in its drive to reduce weight; steel, aluminium, and two high quality plastics - SMC (sheet moulding compound) and Thermoplastic.
Aluminium also features heavily throughout the chassis along with SMC and 'Superlite'.

Practicality
Benefiting from truly original design and innovative packaging, the 645Ci Convertible offers capacious 2+2 passenger accommodation for four adults as well as class-leading luggage capacity.
6_e64_18

Supreme safety
Roll-over protection, Run-flat tyre technology, a tyre pressure monitoring system and fully integrated active and passive safety systems ensure that there is no safer convertible on the market.

Useful technology
Few cars on sale today can offer a more comprehensive panoply of useable, convenient and highly desirable technologies.
And that's without turning to the 645Ci Convertible's extensive options list.

Drivetrain
BMW's award-winning, ultra-refined 4.4-litre V8, with VALVETRONIC and bi- VANOS technology dispenses effortless performance for any and every driving style.
333bhp is transmitted via a choice of three six-speed transmissions.




Design
The traditional outcome of designing a soft-top convertible is a compromise in its styling as practical limitations necessitate a steep rear roof section.
A folding hard-top is one solution, but results in packaging and weight compromises.
The designers' brief for the BMW 645Ci Convertible focused on producing a soft-top version of the 6 Series Coupé without losing that car's visual impact or lightweight advantages.

In developing the 6 Series Convertible, BMW cleverly retained the Coupé's silhouette.
What's more, BMW maintained its philosophy that soft folding roofs offer the owner greater practicality than fold-away hard-tops as they take up far less room when stored.

The starting point for the 6 Series Convertible was to develop the car alongside the Coupé, rather than the more traditional, and compromising, route of taking an existing coupé, chopping off its roof and adding the requisite strengthening materials.
This gave the designers every opportunity to replicate the Coupé's sleek stance, taut but flowing lines and powerful, modern presence.
6_e64_26

Looking in more detail at the new model shows that the company has retained many of the traditional BMW design cues, but pushed the limits of convertible design with an ingenious roof structure and innovative use of modern, lightweight materials.

At the front, the new broad, low-level kidney grille and striking headlamp units achieve an immediate impact.
To the rear, the aerodynamically-contoured LED rear lights and oval, chrome-sleeved tailpipes are eye-catching features that feature practical innovations.

In common with the Coupé, the 6 Series Convertible features a sporting rear-set cabin with a sleekly raked and strengthened A-pillar.
It also retains BMW's customary and distinctive 'Hofmeister' kink, which has been cleverly retained and subtly melded into the Convertible's unique fin structure roof.

Fin structure roof
The fin structure roof is BMW's innovative solution to maintaining a coupé-like profile with a soft folding roof.
The roof structure's steeply sloping rear buttresses almost perfectly replicate the angle of the Coupé's C-pillars, resembling fins when viewed from the rear.
The fins, which dramatically double back at their apex towards the rear of the cabin, also obviate the need for a large rear window, a key restriction of most soft-tops.

Structurally, a traditional soft roof requires a steep rear slope in order to house a large rear window (a small rear window at a shallow angle would follow a coupé's lines, but would offer very poor rear visibility).
However, a large rear window is then impossible to package efficiently with the roof in the folded position.

On the BMW 645Ci Convertible, the fins double back, allowing the car to feature a comparatively small, independent, electrically-powered vertical rear window.
This window offers impressive levels of visibility and can retract into a small slot just behind the rear passenger seats.
This glass can be raised or lowered with the roof open or closed, either for extra ventilation or as an effective wind deflector.
A further benefit of this innovation is an improved boot capacity over more conventional convertible mechanisms - a best-in-class 350 litres with the roof up.
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The fully electric roof comes in either Basalt Grey or Black.
It folds or unfolds in 20 seconds even when driving, at speeds of up to 20mph.
With a unique multi-layered structure, it boasts class-leading interior acoustics and stows away compactly in its own retractable storage compartment in the boot when folded.
It also has the added benefit of being lighter than contemporary folding hard-tops.

Interior
The elegance of the 6 Series Convertible's exterior is complemented by the interior.
High-quality materials including wood or Ruthenium (a lightweight metal that resembles platinum in appearance), combined with superb craftsmanship, create a luxurious ambience with exemplary ergonomics.
The driving-related instruments and controls are positioned in the optimal field of vision and are all within easy reach, while the comfort functions - communications, climate, entertainment and navigation - are easily controlled via second-generation iDrive, the pioneering control command concept.

The upholstery is trimmed in soft but durable Dakota leather, with Exclusive Pearl leather (a soft nappa-type hide) an option.
The front seats provide Comfort Entry to the rear and have powered adjustment (with memory for the driver's seat) as standard.
A sports leather-trimmed steering wheel (with multi-function buttons, two of which are personally programmable via iDrive) is also standard, while Sports front seats and seat heating are optional.

Providing maximum comfort with generous space and irreproachable safety, its luxurious appointments and genuine practicality allow the new BMW 6 Series Convertible to deliver occupants the very finest in open or closed motoring pleasure.




Intelligent Lightweight Technology
Low weight affords greater dynamism, improved safety, enhanced environmental compatibility and increased comfort.
But keeping weight low on a convertible is a more exacting task than on a closed car where a fixed roof contributes significantly to torsional body stiffness.
To overcome this, the 6 Series Convertible redefines lightweight engineering philosophy.

First, conventional materials are replaced by lighter materials wherever possible.
Second, wherever feasible, less material is used.
Finally, despite using less material, components either retain or have increased strength by intelligent reinforcement.

An example of this technology can be found in the 6 Series Convertible's body, which features a unique aluminium front end that is significantly lighter than a conventional front end constructed from steel.
This makes a valuable contribution to the car's near perfect 50:50 front/rear weight distribution.
6_e64_28

Additionally, the housings supporting the front struts are in pressure-cast aluminium alloy, while the doors, rollover safety system, the inner and outer skins of the bonnet, the brake disc callipers and carriers plus most suspension and axle parts are also made of aluminium.
Further weight saving comes from the front wings which are made from thermoplastic and the boot and roof compartment lids which are formed from SMC (sheet moulding compound).
As a result, BMW becomes the first manufacturer in volume production to have a 'hybrid' bodyshell of four different materials.

To ensure that this comprehensive toning and weight watching doesn't go to waste, the 6 Series Convertible shares the 6 Coupé's bespoke, all-aluminium platform chassis.
This displays another key advantage to designing the car alongside its Coupé cousin from scratch and results in the new Convertible leading the field of open-top 2+2s in terms of torsional stiffness and vibration comfort.

This fastidious and individual engineering approach bestows the 6 Series Convertible with impressively low weight for this class of car at 1,890kgs, (or just 1,815kgs without the driver (68kgs) and luggage (7kgs) weights required by EU legislation in official communications).
This helps ensure excellent driving dynamics and exhilarating performance, while delivering no compromise on luxurious accommodation, everyday practicality or impeccable safety.

Drivetrain
BMW's ultra-refined 4.4-litre V8 petrol engine - equipped with VALVETRONIC valve lift control, DIVA variable intake manifold length control and bi-VANOS valve timing control - was 2002's International Engine of the Year.
It provides the new 645Ci with instant thrust, flexible performance and substantial reserves of power.
In addition, efficiency is improved by the new variable intake ducts located just behind the BMW kidney grille.
Six moving 'wings' automatically control the channelling of cooling air to the engine, improving aerodynamics when closed and enabling faster engine warm up from cold.
6_e64_02

Delivering up to 333bhp (245kW) at 6,100rpm with maximum torque of 332lbs-ft (450Nm) at a relaxed 3,600rpm, the manual (or SMG-equipped) 6 Series Convertible can accelerate from 0-62mph in 6.1 seconds (the automatic version taking a mere tenth of a second longer), carrying briskly on to an electronically limited 155mph.
The exhaust note, hardly audible at idle, quickly builds to a beefy, yet unobtrusive, rumble.
At the same time fuel consumption on the EU combined cycle is rated at an impressive 24.6mpg for the automatic and 22.1mpg for the manual.

The 645Ci customer has a choice of three six-speed transmissions: a conventional manual, an automatic with STEPTRONIC manual selection, or the sequential paddle-shift, clutchless SMG system.
Power in all cases is directed to standard fit 18 inch alloys (19 inch optional) rolling on Run-flat tyres with a tyre puncture warning system.




Driving technology and safety
The new 6 Series Convertible almost serves as an industry portfolio for state-of-the-art technological features.
The standard equipment list includes:

° Dynamic Stability Control ( DSC)
° Dynamic Traction Control ( DTC) - a sub function of DSC offering increased thresholds
° Dynamic Driving Control (DDC) - 'Sport' mode
° Anti-lock Braking System ( ABS), Automatic Stability Control ( ASC), Cornering Brake Control ( CBC), Dynamic Brake Control ( DBC), Electronic Brake-force Distribution (EBV)
° Six-speed manual transmission
° Six airbags, intelligent at the front, all electronically linked
° Roll-over protection system
° iDrive command centre with 6.5 inch display
° On-board telematics for emergency services, vehicle assistance or BMW Info
° Servotronic steering
° Sports suspension
° Aerodynamic LED rear light clusters with two-stage Brake Force Display
° Park Distance Control
° Cruise Control
° Bi- Xenon headlamps
° Heat insulating glass
° ISOFIX child seat fixings in rear seats
° Alarm system (Thatcham category one)
° Automatic air conditioning, featuring adaptive evaporation temperature control
° Run-flat tyres with puncture warning system
° Rain sensor, with automatic headlight, wiper and de-mist control
° BMW Business radio/CD player with eight HiFi speakers
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In addition there is a comprehensive catalogue of cutting-edge optional equipment that includes:

° Dynamic Drive active anti-roll bars
° Active Steering
° Steptronic automatic or SMG six-speed transmissions
° Adaptive bi-xenon headlamps
° 8.8 inch colour screen (for iDrive/TV/Navigation displays) and Head-up Display plus Extended Voice Control
° Active Cruise Control
° Television
° Navigation systems, Business or Professional, with traffic information and Extended Voice Control
° Car telephone or Bluetooth phone preparation
° Seat and steering wheel heating
° Climate comfort glass
° Universal remote control (to open electric gates, garage doors)
° LOGIC7 HiFi system


Specifications for BMW e64 cabrio

TypeBuiltPerformanceFuel consEnginePower/Torque
BMW 630i
6 Series (E64)
cabrio
2004
-
2007
Topspd: 250km/h
0-100km/h: 6.9s
80-120km/h*: 7.3s
City: 13.6 l/100km
Hway: 7.3 l/100km
Avg: 9.6 l/100km
Code: N52 B30 O0
2996cc - 6cyl / 24v
petrol
190kW / 258HP at 6600rpm
300Nm at 2500rpm
BMW 630i A LCI
6 Series (E64)
Cabrio
2007
-
now
Topspd: 250km/h
0-100km/h: 7s
City: 11.6 l/100km
Hway: 6 l/100km
Avg: 8.1 l/100km
Code: N53 B30 O0
2996cc - 6cyl / 24v
petrol
200kW / 272HP at 6700rpm
320Nm at 2750-3000rpm
BMW 630i M LCI
6 Series (E64)
Cabrio
2007
-
now
Topspd: 250km/h
0-100km/h: 6.7s
80-120km/h*: 7.3s
City: 11.8 l/100km
Hway: 6.3 l/100km
Avg: 8.3 l/100km
Code: N53 B30 O0
2996cc - 6cyl / 24v
petrol
200kW / 272HP at 6700rpm
320Nm at 2750-3000rpm
BMW 635d A LCI
6 Series (E64)
Cabrio
2007
-
now
Topspd: 250km/h
0-100km/h: 6.6s
City: 9.6 l/100km
Hway: 5.8 l/100km
Avg: 7.2 l/100km
Code: M57 D30 T2
2993cc - 6cyl / 24v
diesel
210kW / 286HP at 4400rpm
580Nm at 1750-2250rpm
BMW 645Ci
6 Series (E64)
cabrio
2004
-
2007
Topspd: 250km/h
0-100km/h: 6.1s
80-120km/h*: 5.5s
City: 18.5 l/100km
Hway: 9.6 l/100km
Avg: 12.8 l/100km
Code: N62 B44
4398cc - 8cyl / 32v
petrol
245kW / 333HP at 6100rpm
450Nm at 3600rpm
BMW 650i
6 Series (E64)
Cabrio
2005
-
2007
Topspd: 250km/h
0-100km/h: 5.7s
80-120km/h*: 4.9s
City: 19.1 l/100km
Hway: 9.3 l/100km
Avg: 12.9 l/100km
Code: N62 B48 O1
4799cc - 8cyl / 32v
petrol
270kW / 367HP at 6300rpm
490Nm at 3400rpm
BMW 650i A LCI
6 Series (E64)
Cabrio
2007
-
now
Topspd: 250km/h
0-100km/h: 5.6s
City: 16.5 l/100km
Hway: 7.7 l/100km
Avg: 10.9 l/100km
Code: N62 B48 O1
4799cc - 8cyl / 32v
petrol
270kW / 367HP at 6300rpm
490Nm at 3400rpm
BMW 650i M-DCT
6 Series (E64)
Cabrio
2007
-
now
Topspd: 250km/h
0-100km/h: 5.5s
80-120km/h*: 4.9s
City: 19.2 l/100km
Hway: 8.8 l/100km
Avg: 12.6 l/100km
Code: N62 B48 O1
4799cc - 8cyl / 32v
petrol
270kW / 367HP at 6300rpm
490Nm at 3400rpm
BMW M6
6 Series (E64)
Cabrio
2006
-
now
Topspd: 250km/h
0-100km/h: 4.8s
80-120km/h*: 4.7s
City: 22.8 l/100km
Hway: 10.7 l/100km
Avg: 15.2 l/100km
Code: S85 B50 Kat
4999cc - 10cyl / 40v
petrol
373kW / 507HP at 7750rpm
520Nm at 6100rpm
* elasticity 80-120km/h in 4th gear
BMW Heaven - Specification Database


Last Updated on Monday, 12 April 2010 14:40  
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