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Younger sister the BMW Z4
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BMW
Z4-1
BMW
Z4-2 :
BMW's new premium two-seater features a fresh new design and all-new chassis.The all-new BMW Z4 roadster marks another highlight in BMW's new design strategy, and sets new standards for
premium roadsters. When its predecessor, the BMW Z3 roadster, was introduced in 1995 (as a '96 model),
it captured people's attention — in particular with its public debut as James Bond's new company car in Goldeneye and virtually created the premium roadster segment. Its
replacement is so completely revised that it will carry a new designation. 
The new Z4 is a modern interpretation of all the classic roadster features - a long and sweeping hood, a long wheelbase, short overhangs and a low seating position in a cockpit that is set back. The design of the car is all new and characterized by the intriguing interplay of convex and concave surfaces, hard edges and curves. This interplay of surfaces creates new transitions of light and shadow from every angle, giving the Z4 an eye-catching visual character.
The new body offers the roadster aficionado not only a spacious cockpit with a design that echoes the sophisticated nature of the exterior, it also boasts a large luggage compartment offering about nine cubic feet of space, which is large enough for two golf bags. The soft roof comes with a heated glass rear window and neatly folds down for storage. An integrated tonneau cover eliminates the need for an attachable boot. The available fully automatic top can be raised or lowered in about 10 seconds. Available with a choice of two high-torque in-line sixes, the Z4 roadster 3.0i (225-horsepower) and the Z4 roadster 2.5i (184-horsepower) offer more than enough power to keep things interesting. The Z4 roadster 3.0i will be available with a choice of 6-speed manual or 5-speed STEPTRONIC automatic, while the Z4 roadster 2.5i offers a 5-speed manual or STEPTRONIC automatic. Next spring a Sequential Manual Gearbox (SMG) will be available in both models. The Z4's handling will establish new benchmarks. The suspension is a modified version of the highly acclaimed suspension from the 3 Series. Dynamic Drive Control (DDC), available as an option, features a “Sport” Button. It provides even more spontaneous acceleration and power at the touch of the gas pedal, quicker steering, as well as an even more aggressive shifting program for the five-speed automatic transmission. (
BMW
Z4-3
)
The Z4's wide track, extremely low center of gravity, optimum 50:50 weight distribution and very precise electric power steering help give the new Z4 its outstanding agility. Fade-free high-performance brakes, standard Run-Flat tires and Dynamic Stability Control (DSC) with an on-demand traction mode contribute to outstanding safety in all driving situations.
Standard features of the new Z4 include a leather sports steering wheel, sport seats, a rollover safety system, and remote entry system. Options available at extra cost include a DVD-based navigation system with 16:9 display which retracts into the instrument panel and a premium sound system with Carver technology for powerful bass reproduction.
The BMW Z4 roadster will be available for sale in the US market this fall, then will make its appearance in Europe in spring 2003. As before, the new roadster will be built in Spartanburg, SC.
Much of the world may have expected the Z4 to be a direct successor to the hugely successful BMW Z3
roadster. Indeed, the Z3 has come to the end of its lifecycle this past June and the new Z4 has begun its career
with a production start in September. But there is more, much more, to the Z4's debut than just "successor
replaces predecessor." The new Z4 roadster takes BMW and the roadster segment to another level.Built on a longer wheelbase, the new Z4 is slightly wider and longer than the Z3.But so much more substance and stance has been built into a vehicle that has not grown significantly in size.
The Z4 delivers everything roadster - two-seater, long and sweeping hood, short front and rear overhangs, low and rearward seating, and
soft top - in a modern, athletic and assertive new design. (
BMW
Z4-4
)
The Z4 places BMW squarely in the field of sophisticated, full-featured sport roadsters.
It comes exclusively with 6-cylinder power and offers a choice of four transmission types (Sequential Manual Gearbox (SMG)
available as of April 2003 production.) Its chassis engineering is new, encompassing multi-link rear suspension,
run-flat tires and wheel/tire diameters up to 18 inches.
The Z4 offers amenities and options never before seen in a regular-production BMW roadster.
Safety engineering and features have been further developed.
The Z4 Series is produced at BMW's Spartanburg, South Carolina manufacturing facility,
employing the most advanced production equipment and processes. Production at Spartanburg began on September 3,
and will serve all BMW markets. Two models will be offered: the Z4 2.5i at $33,795 base price including destination;
and the higher-performing, more extensively equipped Z4 3.0i at $40,945. These are modest increases not
only in view of the new models' new technology and features: The Full Maintenance included in BMW base
prices has been extended from 3 years/36,000 miles to 4 years/50,000 miles.
BMW Z4 - 2.5i Convertible Roadtests
The Z4 is BMW's second attempt at the roadster market in less than a decade and it's all change.
Out goes the retro-looks of the Z3, in comes cutting edge style that is BMW for the new millennium.
The sharp creases announce more than a new suit, for the Z4 promises much more in the way of hard-core driver appeal.
BMW won't admit it, but stealing sales from the Boxster is never far from its mind.So initially the Z4 comes only with powerful six cylinder engines, 2.5 or 3.0 litres.
Plenty of thought has been put into the design too. The 'ten-second' electric roof gets a glass rear window
and is fully automatic - no levers to tug or lock. Boot space is bigger than Z3, and bigger still with the roof up.
The interior is roomier, but although the standard seats are comfortable, the sideways support
is inadequate for high cornering speeds. And boy, does this car grip in the bends.
The wide tyres help, but so does sophisticated suspension that adds clever electronics to allow
the driver the adjust things to the desired driving style. The Z4 is fast, too, especially in 3.0-litre guise,
with so much pulling power and a great sound to the exhaust. Downsides? The steering wheel is ugly,
the wood trim is in poor taste and the optional sports suspension is too hard.
|
BMW
Z4 Specifications
|
| Engine |
DOHC
inline 24-valve 6-cylinder, |
2.2 , 2.5 or 3.0 L |
| Engine |
DOHC
inline 16-valve 4-cylinder, |
2.0
L |
| Engine
type |
2xVANOS
variable Intake-exhaust-valvetiming |
| Bore
x stroke, mm/in. 2.5 & 3.0L |
84.0
x 75.0/ 3.31 x 2.95/ 84.0 x 89.6/3.31 x 3.53 |
| Bore
x stroke, mm : 2.2 & 2.0L |
72.0/80.0
90.0/84.0 |
| Compression
ratio : 2.5 & 3.0 |
2.5
= 10.5:1 /3.0 = 10.2:1 |
| Power
@ rpm, hp : 2.5 & 3.0 |
(2.5L
- 184
@ 6000 ) ( 3.0L - 225 @ 5900 ) |
| Torque
@ rpm |
2.0:200/3,600
- 2.2:210/3,500 - 2.5;245/3,500 - 3.0:300/3,500 |
| Engine-management
system |
Siemens
MS 45 with knock control (2 sensors) |
| Manual
transmission |
Getrag
Type B+, ZF Type H, 5-speed 6-speed |
| Tires |
225/50R16
- 225/45R17 |
| Run-flat
tires (standard) |
225/50R-16(V-rated)/225/45R-17(W-rated) |
| Run-flat
tires (optional) |
225/45R-225/40R-17
- 255/35R-18 RW- (ZSP) |
| Final
Assembly Location |
USA
Spartanburg, SC |
| Max.
Speed |
220
Km/h , 225 Km/h , 235 Km/h & 250 Km/h |
| Production
years |
2003
: 2.5 & 3.0 / 2004
: 2.2 / 2005
: 2.0 : ....
|
| Wheelbase |
98.2" |
| Overall
Length |
161.1" |
| Curb
Weight |
2,932
lbs. |
| Cargo
Capacity |
9
cu. ft. |
|
