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Pontiac Bonneville Hardtop Coupé

(1977 model)

Brief specs of 1977 Pontiac Bonneville Hardtop Coupé

2-door 5-seater fixed-head coupé, petrol (gasoline) 8-cylinder 16-valve V engine, OHV (overhead valve, I-head), 4955 cm3 / 302.4 cu in / 302.4 cu in, 100.7 kW / 135.0 hp / 135.0 hp @ 4000 rpm / 4000 rpm / 4000 rpm, 339.0 N·m / 250.0 lb·ft / 250.0 lb·ft @ 1600 rpm / 1600 rpm / 1600 rpm, automatic 3-speed transmission, rear wheel drive

units: metric UK US

Basic (general) data

Marque (make)PontiacIssued from1977
ModelBonneville Hardtop CoupéIssued until
SerieBonnevilleNumber made
Model familyBody construction
Model codeBody designation
ManufacturerPontiacCountryUS

Bodywork

Base platformNumber of doors2
Bodywork typefixed-head coupéNumber of seats5
Bodywork designerCargo capacity (volume)
Passenger space (volume)Max. cargo capacity (volume)

Dimensions & Weight

Length5443 mm / 214.3 in / 214.3 inTotal (curb) weight1623 kg / 3578 lb / 3578 lb
Width1923 mm / 75.7 in / 75.7 inDry weight
Height1369 mm / 53.9 in / 53.9 inLoad capacity
Wheelbase2944 mm / 115.9 in / 115.9 inGross (max.) weight
Track front1567 mm / 61.7 in / 61.7 inTowing weight
Track rear1542 mm / 60.7 in / 60.7 inWeight distribution (front)
Ground clearance142 mm / 5.6 in / 5.6 inFuel capacity80 l / 17.6 UK gal / 21.1 US gal
Length/wheelbase ratio1.85  

Aerodynamics

Drag coefficient (Cd, Cx, Cw)Frontal area (A)2.24 m2 / 24.1 sq ft / 24.1 sq ft (est.)
Aerodynamic coefficient (Cd×A)Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine

Engine CodeTotal number of cylinders8
Engine TypeV engine Total number of valves16
Engine ManufacturerGMValves per cylinder2
Engine constructioncast iron block & headBore101.6 mm / 4.00 in / 4.00 in
Fuelpetrol (gasoline)Stroke76.4 mm / 3.01 in / 3.01 in
Fuel detailsBore/Stroke ratio1.33
Fuel supply1 Rochester M2MC 200 carburettorEngine displacement4955 cm3 / 302.4 cu in / 302.4 cu in
Engine Main bearings5Unitary capacity619.38 cm3/cylinder / 37.797 cu in/cylinder / 37.797 cu in/cylinder
Cam DesignOHV (overhead valve, I-head)Compression ratio8.2 : 1
SumpMax. output power100.7 kW / 135.0 hp / 135.0 hp at 4000 rpm / 4000 rpm / 4000 rpm
AspirationnaturalMax. torque339.0 N·m / 250.0 lb·ft / 250.0 lb·ft at 1600 rpm / 1600 rpm / 1600 rpm
Compressor typeN/AMaximum rpm4400 rpm / 4400 rpm / 4400 rpm
IntercoolernoMax. net output (power at the wheels)40.3 kW / 54.0 hp / 54.0 hp (est.)
CoolantwaterSpecific output20.3 kW/l / 0.447 bhp/cu in / 0.447 bhp/cu in
Catalytic converteryesSpecific torque68.4 N·m/l / 0.60 lb·ft/cu in / 0.60 lb·ft/cu in

Transmission

Transmission typeautomaticNumber of gears3
Wheel driverear wheel driveTop gear (drive) ratio1
  Final gear (drive) ratio2.41

Performance

Acceleration 0-50 mph (80 km/h)Top (maximal) speed
Acceleration 0-60 mph (97 km/h)Power-to-weight ratio83.2 kW/ton / 63.0 bhp/ton / 63.0 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-lock3.5Turning circle
Suspension frontIndependent, Wishbone (A-arm, control arm), Coil springs, Anti-roll (anti-sway) bar (ARB)Suspension rearLive axle,Trail Radius arms, Coil springs, Anti-roll (anti-sway) bar (ARB)
Wheels frontWheels rear
Tyres frontGR78 x 15Tyres rearGR78 x 15
Brakes frontventilated discBrakes reardrum
Brake diameter front279 mm / 11.0 in / 11.0 inBrake diameter rear
Brakes detailsservo-assistedBraked area

Technical specifications and performance data of Pontiac Bonneville Hardtop Coupé

Infobox

Beyond basic auto insurance

In addition to having enough liability protection, there are some other coverages you should consider:

Collision: Pays for damage to your car resulting from a collision with another car, an object or as a result of flipping over. It also covers damage caused by potholes. Even if you are at fault for the accident, your collision coverage will reimburse you for the costs of repairing your car, minus the deductible. If you are not at fault, your insurance company may try to recover the amount they paid out from the other driver’s insurance company though a process called subrogation. If the company is successful, you will be reimbursed for the deductible.

Comprehensive: Reimburses you for loss due to theft or damage caused by something other than a collision with another car or object, such as fire, falling objects, missiles, explosion, earthquake, windstorm, hail, flood, vandalism, riot, or contact with animals such as birds or deer. Comprehensive insurance will also reimburse you if your windshield is cracked or shattered; some companies may waive the deductible on the glass portion of this coverage.

Uninsured and Underinsured Motorist Coverage: Reimburses you, a member of your family, or a designated driver if one of you is hit by an uninsured or hit-and-run driver. Underinsured motorist coverage comes into play when an at-fault driver has insufficient insurance to pay for your total loss. These coverages are required in 19 states, but available in all. It is important to purchase the same amount of coverage for uninsured/underinsured motorists as you have for liability to others.

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