(1979 model)
| Marque (make) | BMW | Issued from | 1979 |
|---|---|---|---|
| Model | 728i | Issued until | |
| Serie | 7 | Number made | |
| Model family | E23 | Body construction | |
| Model code | Body designation | ||
| Manufacturer | BMW | Country | DE,ZA |
| Base platform | Number of doors | 4 | |
|---|---|---|---|
| Bodywork type | sedan (saloon) | Number of seats | 5 |
| Bodywork designer | Cargo capacity (volume) | ||
| Max. cargo capacity (volume) |
| Length | 4860 mm / 191.3 in / 191.3 in | Ground clearance | |
|---|---|---|---|
| Width | 1800 mm / 70.9 in / 70.9 in | Length/wheelbase ratio | 1.74 |
| Height | 1430 mm / 56.3 in / 56.3 in | Total (curb) weight | 1470 kg / 3241 lb / 3241 lb |
| Wheelbase | 2790 mm / 109.8 in / 109.8 in | Dry weight | |
| Track front | 1500 mm / 59.1 in / 59.1 in | Weight distribution (front) | |
| Track rear | 1520 mm / 59.8 in / 59.8 in | Fuel capacity | 100 l / 22.0 UK gal / 26.4 US gal |
| Drag coefficient | 0.420 | Frontal Area | |
|---|---|---|---|
| Cx |
| Engine Code | M30 | Total number of cylinders | 6 |
|---|---|---|---|
| Engine Type | straight (inline) | Total number of valves | 12 |
| Engine Manufacturer | BMW | Valves per cylinder | 2 |
| Engine construction | cast iron block; light alloy head | Bore | 86.0 mm / 3.39 in / 3.39 in |
| Fuel | petrol (gasoline) | Stroke | 80.0 mm / 3.15 in / 3.15 in |
| Fuel supply | Bore/Stroke ratio | 1.08 | |
| Engine Main bearings | 7 | Engine displacement | 2788 cm3 / 170.1 cu in / 170.1 cu in |
| Cam Design | SOHC (single overhead camshaft) | Unitary capacity | 464.67 cm3/cylinder / 28.356 cu in/cylinder / 28.356 cu in/cylinder |
| Sump | Compression ratio | 9.3 : 1 | |
| Aspiration | natural | Max. output power | 135.0 kW / 183.5 hp / 183.5 hp at 5800 rpm / 5800 rpm / 5800 rpm |
| Compressor type | N/A | Max. torque | 240.0 Nm / 177.0 lbft / 177.0 lbft at 4200 rpm / 4200 rpm / 4200 rpm |
| Intercooler | none | Maximum rpm | 6500 rpm / 6500 rpm / 6500 rpm |
| Coolant | water | Max. net output | 133.1 kW / 181.0 bhp / 181.0 bhp |
| Catalytic converter | no | Specific output | 64.9 kW/l / 1.446 bhp/cu in / 1.446 bhp/cu in |
| Specific torque | 86.08 Nm/l / 0.753 lbft/cu in / 0.753 lbft/cu in |
| Transmission type | manual | Number of gears | 5 |
|---|---|---|---|
| Wheel drive | rear wheel drive | Top gear (drive) ratio | 0.81 |
| Final gear (drive) ratio | 3.64 |
| Acceleration 0-50 mph (80 km/h) | Top (maximal) speed | 201 km/h / 125 mph / 125 mph | |
|---|---|---|---|
| Acceleration 0-60 mph (96 km/h) | 9.30 s / 9.30 s / 9.30 s | Power-to-weight ratio | 123.13 kW/ton / 167.41 bhp/ton / 167.41 bhp/ton |
| Acceleration 0-100 km/h | Fuel consumption, City (urban) | ||
| Acceleration 0-100 mph (160 km/h) | Fuel consumption, Road (extra-urban) | ||
| Acceleration 80-120 km/h (50-70 mph) in top | Fuel consumption, Mixed (combined) | ||
| 0-Quarter-mile time | Fuel consumption, Euro | ||
| 0-Kilometer time | CO2 emissions |
| Engine location | front | Engine alignment | longitudinal |
|---|---|---|---|
| Steering | recirculating ball VPAS | ||
| Turns lock-to-lock | 3.80 | Turning circle | 11.40 m / 37.40 ft / 37.40 ft |
| Suspension front | I.CS.ARB. | Suspension rear | I.STA.CS. |
| Wheels front | 6 | Wheels rear | 6 |
| Tyres front | 195/70 HR 14 | Tyres rear | 195/70 HR 14 |
| Brakes front | ventilated disc | Brakes rear | disc, servo-assisted |
| Brake diameter front | 280 mm / 11.0 in / 11.0 in | Brake diameter rear | 280 mm / 11.0 in / 11.0 in |
| Braked area |
Technical specifications and performance data of BMW 728i
