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BMW 728i

(1979 model)

Brief specs of 1979 BMW 728i

4-door 5-seater sedan (saloon), petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, SOHC (single overhead camshaft), 2788 cm3 / 170.1 cu in / 170.1 cu in, 135.0 kW / 181.0 hp / 181.0 hp @ 5800 rpm / 5800 rpm / 5800 rpm, 240.0 N·m / 177.0 lb·ft / 177.0 lb·ft @ 4200 rpm / 4200 rpm / 4200 rpm, manual 5-speed transmission, rear wheel drive, 201 km/h / 125 mph / 125 mph top speed

units: metric UK US

Basic (general) data

Marque (make)BMWIssued from1979
Model728iIssued until
Serie7Number made
Model familyE23Body construction
Model codeBody designation
ManufacturerBMWCountryDE,ZA

Bodywork

Base platformNumber of doors4
Bodywork typesedan (saloon)Number of seats5
Bodywork designerCargo capacity (volume)500 l / 17.66 cu ft / 17.66 cu ft
Passenger space (volume)4450 l / 157.15 cu ft / 157.15 cu ftMax. cargo capacity (volume)

Dimensions & Weight

Length4860 mm / 191.3 in / 191.3 inTotal (curb) weight1470 kg / 3241 lb / 3241 lb
Width1800 mm / 70.9 in / 70.9 inDry weight
Height1430 mm / 56.3 in / 56.3 inLoad capacity
Wheelbase2790 mm / 109.8 in / 109.8 inGross (max.) weight
Track front1500 mm / 59.1 in / 59.1 inTowing weight
Track rear1520 mm / 59.8 in / 59.8 inWeight distribution (front)
Ground clearanceFuel capacity100 l / 22.0 UK gal / 26.4 US gal
Length/wheelbase ratio1.74  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)0.42Frontal area (A)2.19 m2 / 23.6 sq ft / 23.6 sq ft (est.)
Aerodynamic coefficient (Cd×A)0.92 m2 / 9.9 sq ft / 9.9 sq ft (est.)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)22.8 kW / 30.6 hp / 30.6 hp (est.)

Engine

Engine CodeM30Total number of cylinders6
Engine Typestraight (inline) (Inline, 6 cylinder)Total number of valves12
Engine ManufacturerBMWValves per cylinder2
Engine constructioncast iron block; light alloy headBore86.0 mm / 3.39 in / 3.39 in
Fuelpetrol (gasoline)Stroke80.0 mm / 3.15 in / 3.15 in
Fuel detailsBore/Stroke ratio1.08
Fuel supplyBo L-Jet fuel inj.Engine displacement2788 cm3 / 170.1 cu in / 170.1 cu in
Engine Main bearings7Unitary capacity464.67 cm3/cylinder / 28.356 cu in/cylinder / 28.356 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio9.3 : 1
SumpMax. output power135.0 kW / 181.0 hp / 181.0 hp at 5800 rpm / 5800 rpm / 5800 rpm
AspirationnaturalMax. torque240.0 N·m / 177.0 lb·ft / 177.0 lb·ft at 4200 rpm / 4200 rpm / 4200 rpm
Compressor typeN/AMaximum rpm6500 rpm / 6500 rpm / 6500 rpm
IntercoolernoMax. net output (power at the wheels)65.1 kW / 87.3 hp / 87.3 hp (est.)
CoolantwaterSpecific output48.4 kW/l / 1.064 bhp/cu in / 1.064 bhp/cu in
Catalytic converternoSpecific torque86.1 N·m/l / 0.75 lb·ft/cu in / 0.75 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears5
Wheel driverear wheel driveTop gear (drive) ratio0.81
  Final gear (drive) ratio3.64

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed201 km/h / 125 mph / 125 mph
Acceleration 0-60 mph (97 km/h)9.30 s / 9.30 s / 9.30 sPower-to-weight ratio123.1 kW/ton / 93.3 bhp/ton / 93.3 bhp/ton
Acceleration 0-100 km/hFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time Fuel consumption, Euro
Standing kilometer time CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
Steeringrecirculating ball VPASSteering details
Turns lock-to-lock3.8Turning circle11.4 m / 37.4 ft / 37.4 ft
Suspension frontIndependent, Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearIndependent, Semi-trailing arm, Coil springs
Wheels front6Wheels rear6
Tyres front195/70 HR 14Tyres rear195/70 HR 14
Brakes frontventilated discBrakes reardisc
Brake diameter front280 mm / 11.0 in / 11.0 inBrake diameter rear280 mm / 11.0 in / 11.0 in
Brakes detailsservo-assisted, ABS (anti-lock braking system)Braked area

Technical specifications and performance data of BMW 728i

Infobox

Auto Insurance

Defined as: The contract by which the insurer assumes the risk of any loss the owner or operator of a car may incur through damage to property or persons as the result of an accident. There are many specific forms of automobile insurance, varying not only in the kinds of risk that they cover but also in the legal principles underlying them.

In “plain” English, this means coverage that is carried by someone who is driving a motor vehicle that is involved in an accident that causes property damage or personal injury to someone.

Currently, New Hampshire and Wisconsin do not have “compulsory auto insurance liability laws”. Simply put, this means that these states do not require licensed drivers (and there should not be any other kind of driver) to have some type of auto insurance policy that provides at least minimum coverage. The remaining 48 states do have such insurance laws in effect.

You should check with the state you live in if you have questions concerning whether or not you are required to have auto insurance, and also to determine if you are required to have a certain amount of coverage. If you are required to have a certain amount, you will then need to check to see if there is a minimum amount and maximum amount.

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