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2008 BMW Z4 M Roadster & Coupe Review

November 2007
Filed under: BMW Car News | BMW Headlines

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Ultra-high-performance 2-seater Roadster and Coupe, developed on basis of Z4 Roadster and Coupe by BMW M. Takes Z4’s innate sportiness to an even higher level of thoroughbred performance and driving pleasure. Built at BMW’s Spartanburg, South Carolina production plant

How M Roadster and M Coupe differ from Z4 Roadster 3.0si and
Z4 Coupe 3.0si

Performance & efficiency

• 3.2-liter BMW M S54 inline 6-cylinder engine, 330 hp; vs. 3.0-liter N52 inline 6-cylinder engine, 255 hp
• 0-60 in 4.9 sec., vs. Z4’s 5.6 sec. with manual transmission
Handling, ride & braking
• M Variable Differential Lock
• Dynamic Stability Control with specific M logic
• Modified front suspension with –
• Wider track
• Newly configured lower arms
• New steering knuckles, bolted to struts
• Modified rear suspension with –
• Larger, stronger subframe
• High performance wheel bearings, Central Links and anti-roll-bar configuration
How M Roadster and M Coupe differ from Z4 Roadster 3.0si and
Z4 Coupe 3.0si –
Handling, ride & braking (cont.)
• M-specific ride height and suspension calibration
• Specific hydraulically-assisted steering (Z4: electric power steering)
• Compound, cross-drilled 4-wheel ventilated disc brakes with larger dimensions
• 18-in. M Double Spoke wheels with differentiated front/rear sizes and performance tires (Z4: 18-in. available in Sport Package, M Roadster and M Coupe rear wheels wider than Z4’s)
• M Mobility System for temporary tire repairs (Z4: run-flat tires)
Exterior design & function
• Front bumper apron with large air intakes for cooling front brakes and engine
• Standard Xenon headlights (Z4: optional)
• Standard headlight cleaning system (Z4: optional)
• M logo on body sides and trunklid
• Diffusor and 4 stainless steel exhaust tips under rear bumper
• M-specific paint colors available
Ergonomics, luxury & convenience
• Fully automatic power softtop for Roadster standard (Z4: optional)
• Higher-grade Nappa leather standard in M Roadster and M Coupe; Full leather treatment optional
• Specific trim materials and finishes throughout M interior
• Special M instrumentation
Options
• Premium Package has different contents from that of Z4 3.0si


Performance & efficiency features

• 3.2-liter DOHC 24-valve inline 6-cylinder engine high-pressure VANOS variable valve timing, 6 individual throttles, semi-dry-sump lubrication, low-back-pressure exhaust system and other features
• 6-speed manual transmission with heavy-duty clutch
• High-rigidity roadster and coupe body/chassis unit with aluminum hood
• BMW M strut-type front suspension with forged-aluminum lower arms
M Roadster and M Coupe key features – (cont.)
Handling, ride & braking features
• BMW M-modified rear suspension with aluminum upper transverse links
• Engine-speed-sensitive hydraulic power steering
• 4-wheel compound/cross-drilled, ventilated disc brakes
• M Variable Differential Lock
• M-calibrated Dynamic Stability Control (traction and stability system)
• 18-in. M Double Spoke wheels and performance tires in differentiated front/rear sizes
• Tire Pressure Monitor
Exterior design & function
• Unique Roadster and Coupe designs, featuring interplay of convex and concave surfaces, traditional and contemporary style elements; extensive BMW M design and funtional features distinguish M Roadster and M Coupe from Z4 models
• Xenon headlights with auto-leveling, high-intensity headlight cleaning system
• Adaptive Brake Lights (illumination increases with harder braking)
• Rain-sensing windshield wipers
• Heated exterior mirrors and windshield-washer jets
• Automatic Roadster power softtop with interior lining and heated glass rear window
Ergonomics, luxury & convenience features
• Vehicle and Key Memory
• Keyless entry with multi-function remote
• Dual power exterior mirrors
• Automatic headlight control (switches on headlights and related lighting when ambient light drops below a certain level)
• Leather-covered tilt/telescopic M sport steering wheel with stitching in M colors, fingertip audio controls
• 8-way adjustable sport seats
• Outside-temperature display
• Power windows with 1-touch open/close, power sealing system
• Automatic climate control with activated-charcoal microfilter ventilation
• Anti-theft AM/FM/CD audio system with Radio Data System, 10 speakers
• Pre-wiring for phone and CD changer
• Variable softtop compartment (for Roadster)


Safety & security

• Front-impact Supplementary Restraint System with 2-stage Smart Airbags
• Automatic safety-belt tensioners and force limiters
• Active Knee Protection
• Seat-occupation detection on passenger’s seat
• LATCH attachment of child-restraint safety seat to passenger’s seat
• Passenger-airbag de-activation switch and indicator
• Side-impact airbags
• Rollover Protection (for Roadster)
• Battery Safety Terminal
• Central locking system
• Coded Driveaway Protection (immobilizer system)
• Pre-wiring for alarm system
Factory-installed options –
Package
• Premium Package:
• Auto-dimming interior and exterior mirrors
• 8-way power sport seats with driver’s-seat memory
• Cruise control
• Premium Sound System (THX Certified)
• Interior storage package
• BMW Assist with 4-year subscription (previously 1-year subscription)
Stand-alone options
• Metallic paint
• Wide range of upholstery and interior trim options
• 8-way power sport seats with driver’s-seat memory
• Heated seats
• On-board Navigation System with DVD database
• Preparation for removable hardtop
• BMW Assist
• HD Radio with multicasting reception capability
• Removable hardtop (for Roadster)
• Alarm system
• SIRIUS Satellite Radio


BMW center-installed accessories

• iPod adapter kit
• 6-disc CD changer
• Wind deflector (for Roadster)
• Trunk-mount carrier rack and accessories (for Roadster)
…and more

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