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BMW 635 CSi

(1981 model)

Brief specs of 1981 BMW 635 CSi

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 6-cylinder 12-valve straight (inline) engine, SOHC (single overhead camshaft), 3430 cm3 / 209.3 cu in / 209.3 cu in, 160.3 kW / 215.0 hp / 215.0 hp @ 5200 rpm / 5200 rpm / 5200 rpm, 310.0 N·m / 228.6 lb·ft / 228.6 lb·ft @ 4000 rpm / 4000 rpm / 4000 rpm, manual 5-speed transmission, rear wheel drive, 225 km/h / 140 mph / 140 mph top speed

units: metric UK US

Basic (general) data

Marque (make)BMWIssued from1981
Model635 CSiIssued until
Serie6Number made
Model familyE24Body construction
Model codeBody designation
ManufacturerBMWCountryDE,ZA

Bodywork

Base platformNumber of doors2
Bodywork typefixed-head coupéNumber of seats2+2
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length4755 mm / 187.2 in / 187.2 inTotal (curb) weight1427 kg / 3146 lb / 3146 lb
Width1753 mm / 69.0 in / 69.0 inDry weight
Height1384 mm / 54.5 in / 54.5 inLoad capacity
Wheelbase2625 mm / 103.3 in / 103.3 inGross (max.) weight
Track front1430 mm / 56.3 in / 56.3 inTowing weight
Track rear1464 mm / 57.6 in / 57.6 inWeight distribution (front)57.0 % / 57.0 % / 57.0 %
Ground clearance140 mm / 5.5 in / 5.5 inFuel capacity70 l / 15.4 UK gal / 18.5 US gal
Length/wheelbase ratio1.81  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)0.4Frontal area (A)2.06 m2 / 22.2 sq ft / 22.2 sq ft (est.)
Aerodynamic coefficient (Cd×A)0.82 m2 / 8.9 sq ft / 8.9 sq ft (est.)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)20.5 kW / 27.5 hp / 27.5 hp (est.)

Engine

Engine CodeM30Total number of cylinders6
Engine Typestraight (inline) Total number of valves12
Engine ManufacturerBMWValves per cylinder2
Engine constructioncast iron block; aluminium alloy headBore92.0 mm / 3.62 in / 3.62 in
Fuelpetrol (gasoline)Stroke86.0 mm / 3.39 in / 3.39 in
Fuel detailsBore/Stroke ratio1.07
Fuel supplyBo Mot fuel inj.Engine displacement3430 cm3 / 209.3 cu in / 209.3 cu in
Engine Main bearings7Unitary capacity571.67 cm3/cylinder / 34.885 cu in/cylinder / 34.885 cu in/cylinder
Cam DesignSOHC (single overhead camshaft)Compression ratio10.0 : 1
SumpwetMax. output power160.3 kW / 215.0 hp / 215.0 hp at 5200 rpm / 5200 rpm / 5200 rpm
AspirationnaturalMax. torque310.0 N·m / 228.6 lb·ft / 228.6 lb·ft at 4000 rpm / 4000 rpm / 4000 rpm
Compressor typeN/AMaximum rpm
IntercoolernoMax. net output (power at the wheels)84.8 kW / 113.7 hp / 113.7 hp (est.)
CoolantwaterSpecific output46.7 kW/l / 1.027 bhp/cu in / 1.027 bhp/cu in
Catalytic converternoSpecific torque90.4 N·m/l / 0.79 lb·ft/cu in / 0.79 lb·ft/cu in

Transmission

Transmission typemanualNumber of gears5
Wheel driverear wheel driveTop gear (drive) ratio0.81
  Final gear (drive) ratio3.07

Performance

Acceleration 0-50 mph (80 km/h)5.20 s / 5.20 s / 5.20 sTop (maximal) speed225 km/h / 140 mph / 140 mph
Acceleration 0-60 mph (97 km/h)6.90 s / 6.90 s / 6.90 sPower-to-weight ratio150.7 kW/ton / 114.2 bhp/ton / 114.2 bhp/ton
Acceleration 0-100 km/h7.30 s / 7.30 s / 7.30 sFuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)18.30 s / 18.30 s / 18.30 sFuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in topFuel consumption, Mixed (combined)
Standing ¼mile time15.20 s / 15.20 s / 15.20 s (top 92 km/h / 57 mph / 57 mph)Fuel consumption, Euro
Standing kilometer time27.90 s / 27.90 s / 27.90 s CO2 emissions
  Range

Chassis

Engine locationfrontEngine alignmentlongitudinal
Steeringrecirculating ball VPASSteering details
Turns lock-to-lock3.5Turning circle11.2 m / 36.7 ft / 36.7 ft
Suspension frontIndependent, MacPherson strut, Coil springsSuspension rearIndependent, Semi-trailing arm, Coil springs
Wheels frontWheels rear
Tyres frontMichelin TRX 220/55 VR 390Tyres rearMichelin TRX 220/55 VR 390
Brakes frontventilated discBrakes reardisc
Brake diameter front282 mm / 11.1 in / 11.1 inBrake diameter rear284 mm / 11.2 in / 11.2 in
Brakes detailsservo-assisted, ABS (anti-lock braking system)Braked area

Technical specifications and performance data of BMW 635 CSi

Infobox

Car Insurance FAQs #3

Why is the insurance company not returning all of my premium after the policy was canceled?

Depending on the type of policy, you may be required to pay a minimum premium, or the premium may be fully "earned." In other instances, if you replaced your coverage with a different company, during the policy term, you may be subject to a "short-rate" penalty, which is usually about 10% of the unearned amount. You might also have some premium due for recent changes in coverage. The company should be able to provide a detailed billing history that explains the return-premium calculation.

Am I required to complete a medical questionnaire?

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