| petrol | |
| diesel | |
| alcohol based | |
| gas (LPG, CNG) | |
| steam | |
| electricity |
| Add a car: | BMW |
Basic (general) data |  remove |
| Marque (make) |  BMW |
|---|---|
| Serie | Z4 |
| Model family | |
| Model | Z4 Roadster 2.5i Automatic |
| Model code | |
| Issued from | 2004 |
| Issued until | |
| Country of origin | DE |
| Number made | |
| Body construction | |
| Body designation | |
Bodywork | |
| Base platform | |
| Bodywork type | convertible (cabriolet) |
| Bodywork designer | |
| Number of doors | 2 |
| Number of seats | 2 |
| Cargo capacity (volume) [l / cu ft / cu ft] | |
| Max. cargo capacity (volume) [l / cu ft / cu ft] | |
| Passenger space (volume) [l / cu ft / cu ft] | 4130 / 145.85 / 145.85 |
Dimensions & Weight | |
| Wheelbase [mm / in / in] | 2500 / 98.4 / 98.4 |
| Track front [mm / in / in] | |
| Track rear [mm / in / in] | |
| Length [mm / in / in] | 4100 / 161.4 / 161.4 |
| Width [mm / in / in] | 1790 / 70.5 / 70.5 |
| Height [mm / in / in] | 1300 / 51.2 / 51.2 |
| Length/wheelbase ratio | 1.64 |
| Ground clearance [mm / in / in] | |
| Total (curb) weight [kg / lb / lb] | 1296 / 2857 / 2857 |
| Dry weight [kg / lb / lb] | |
| Load capacity [kg / lb / lb] | 270 / 595 / 595 |
| Gross (max.) weight [kg / lb / lb] | 1566 / 3452 / 3452 |
| Towing weight [kg / lb / lb] | |
| Weight distribution (front) [% / % / %] | |
| Fuel capacity [l / UK gal / US gal] | 55 / 12.1 / 14.5 |
Aerodynamics | |
| Drag coefficient (Cd, Cx, Cw) | |
| Frontal area (A) [m2 / sq ft / sq ft] | 1.98 / 21.3 / 21.3 (est.) |
| Aerodynamic coefficient (Cd×A) [m2 / sq ft / sq ft] | |
| Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph) [kW / hp / hp] | |
Engine | |
| Engine Code | |
| Engine Manufacturer | |
| Engine Type | straight (inline) |
| Engine Type Details | Inline, 6 cylinder |
| Sump | |
| Fuel | petrol (gasoline) |
| Fuel details | unleaded 98 |
| Cam Design | DOHC (double overhead camshafts, twin cam) |
| Total number of cylinders | 6 |
| Total number of valves | 24 |
| Valves per cylinder | 4 |
| Engine Main bearings | |
| Engine construction | |
| Bore [mm / in / in] | 84.0 / 3.31 / 3.31 |
| Stroke [mm / in / in] | 75.0 / 2.95 / 2.95 |
| Bore/Stroke ratio | 1.12 |
| Engine displacement [cm3 / cu in / cu in] | 2494 / 152.2 / 152.2 |
| Unitary capacity [cm3/cylinder / cu in/cylinder / cu in/cylinder] | 415.63 / 25.363 / 25.363 |
| Compression ratio | 11.0 |
| Fuel supply | Injection |
| Aspiration | |
| Compressor type | |
| Intercooler | |
| Catalytic converter | |
| Max. output power [kW / hp / hp] | 138.0 / 185.1 / 185.1 |
| Max. output power rpm [rpm / rpm / rpm] | 6000 / 6000 / 6000 |
| Max. torque [N·m / lb·ft / lb·ft] | 245.0 / 180.7 / 180.7 |
| Max. torque rpm [rpm / rpm / rpm] | 3500 / 3500 / 3500 |
| Maximum rpm [rpm / rpm / rpm] | |
| Coolant | |
| Max. net output (power at the wheels) [kW / hp / hp] | 55.2 / 74.0 / 74.0 (est.) |
| Specific output [kW/l / bhp/cu in / bhp/cu in] | 55.3 / 1.216 / 1.216 |
| Specific torque [N·m/l / lb·ft/cu in / lb·ft/cu in] | 98.2 / 0.86 / 0.86 |
Transmission | |
| Transmission type | automatic |
| Number of gears | 6 |
| Wheel drive | rear wheel drive |
| Top gear (drive) ratio | |
| Final gear (drive) ratio | |
Performance | |
| Power-to-weight ratio [kW/ton / bhp/ton / bhp/ton] | 145.4 / 110.2 / 110.2 |
| Acceleration 0-50 mph (80 km/h) [s / s / s] | |
| Acceleration 0-60 mph (97 km/h) [s / s / s] | |
| Acceleration 0-100 km/h [s / s / s] | |
| Acceleration 0-100 mph (160 km/h) [s / s / s] | |
| Acceleration 80-120 km/h (50-70 mph) in top [s / s / s] | |
| Standing ¼mile time [s / s / s] | |
| Standing ¼mile speed [km/h / mph / mph] | |
| Standing kilometer time [s / s / s] | |
| Standing kilometer speed [km/h / mph / mph] | |
| Top (maximal) speed [km/h / mph / mph] | 235 / 146 / 146 |
| Fuel consumption, City (urban) [l/100km / mpg-UK / mpg-US] | 11.8 / 23.9 / 19.9 |
| Fuel consumption, Road (extra-urban) [l/100km / mpg-UK / mpg-US] | 8.4 / 33.6 / 28.0 |
| Fuel consumption, Mixed (combined) [l/100km / mpg-UK / mpg-US] | 10.2 / 27.7 / 23.1 |
| Fuel consumption, Euro [l/100km / mpg-UK / mpg-US] | |
| CO2 emissions [g/km / g/mi / g/mi] | 239 / 384 / 384 (est.) |
| Range [km / mi / mi] | 539 / 335 / 335 |
Chassis | |
| Engine location | front |
| Engine alignment | longitudinal |
| Steering | |
| Steering details | |
| Turns lock-to-lock | |
| Suspension front | |
| Suspension rear | |
| Wheels front | |
| Wheels rear | |
| Tyres front | 205/55-R16 |
| Tyres rear | 205/55-R16 |
| Brakes front | ventilated disc |
| Brakes rear | disc |
| Brakes details | ABS (anti-lock braking system) |
| Brake diameter front [mm / in / in] | |
| Brake diameter rear [mm / in / in] | |
| Braked area [cm2 / sq in / sq in] |