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The Pontiac Astre is a
subcompact Subcompact car is a North American classification for cars smaller than a compact car. It is broadly equivalent to the B-segment (Europe), supermini (Great Britain) or A0-class (China) classifications. According to the U.S. Environmental Prot ...
automobile that was marketed by
Pontiac Pontiac may refer to: *Pontiac (automobile), a car brand *Pontiac (Ottawa leader) ( – 1769), a Native American war chief Places and jurisdictions Canada *Pontiac, Quebec, a municipality ** Apostolic Vicariate of Pontiac, now the Roman Catholic D ...
as a
rebadged In the automotive industry, rebadging is a form of market segmentation used by automobile manufacturers around the world. To allow for product differentiation without designing or engineering a new model or brand (at high cost or risk), a man ...
variant of the
Chevrolet Vega The Chevrolet Vega is a subcompact automobile that was manufactured and marketed by GM's Chevrolet subdivision from 1970 to 1977. Available in two-door hatchback, notchback, wagon, and sedan delivery body styles, all models were powered by an ...
. Initially marketed in Canada for
model year The model year (sometimes abbreviated "MY") is a method of describing the version of a product which has been produced over multiple years. The model year may or may not be the same as the calendar year in which the product was manufactured. ...
s 1973–1974, the Astre debuted in the U.S. for the 1975 model year, competing with other domestic and foreign subcompacts that included the
Mercury Bobcat Mercury commonly refers to: * Mercury (planet), the nearest planet to the Sun * Mercury (element), a metallic chemical element with the symbol Hg * Mercury (mythology), a Roman god Mercury or The Mercury may also refer to: Companies * Mercury ...
,
Volkswagen Rabbit The Volkswagen Golf () is a compact car/small family car (C-segment) produced by the German automotive manufacturer Volkswagen since 1974, marketed worldwide across eight generations, in various body configurations and under various nameplates ...
, and Toyota Corolla. Built on the H-body platform, the car was available in hatchback, notchback,
wagon A wagon or waggon is a heavy four-wheeled vehicle pulled by draught animals or on occasion by humans, used for transporting goods, commodities, agricultural materials, supplies and sometimes people. Wagons are immediately distinguished from ...
, and panel delivery
body style Governments and private organizations have developed car classification schemes that are used for various purposes including regulation, description, and categorization of cars. The International Standard ISO 3833-1977 ''Road vehicles – Types ...
s. The Astre shared the aluminum-block 2.3 liter
inline-four A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The vast majority of automotive four-cylinder engines use a straight-four layout (with the e ...
engine with the Vega through 1976, while the final 1977 models used Pontiac's all-iron 2.5 liter inline-four engine. The Astre was cancelled with the Vega at the end of the 1977 model year, although the wagon continued for 1978 and 1979, rebadged as part of the
Pontiac Sunbird The Pontiac Sunbird (also known as the Pontiac J2000 and Pontiac 2000) is a model line that was manufactured and marketed by Pontiac from the 1976 to the 1994 model years. Loosely deriving its name from the Pontiac Firebird, the Sunbird was intr ...
line. The word ''" astre"'' is
Catalan Catalan may refer to: Catalonia From, or related to Catalonia: * Catalan language, a Romance language * Catalans, an ethnic group formed by the people from, or with origins in, Northern or southern Catalonia Places * 13178 Catalan, asteroid #1 ...
for "star", a shared naming convention for the Vega.


Design

In 1968 GM chairman James Roche announced that General Motors would produce a new mini-car in the U.S. in two years. Pontiac's own small car program had been rejected. Not only did corporate management make the decision to enter the mini-car market, it also decided to develop the car itself. It was a corporate car, not a divisional one.
Ed Cole Edward Nicholas Cole (September 17, 1909 – May 2, 1977) was an American automotive executive for General Motors. Career Cole was the son of a dairy farmer. In his youth, he designed, built, and sold homemade radio sets, and as a teenager ...
formed a GM corporate design team exclusively for the Chevrolet Vega headed by William Munser, who had worked on the
Camaro The Chevrolet Camaro is a mid-size American automobile manufactured by Chevrolet, classified as a pony car. It first went on sale on September 29, 1966, for the 1967 model year and was designed to compete with the Ford Mustang. The Camaro share ...
. The Pontiac Division was given its own version of the Vega for the
Canadian Canadians (french: Canadiens) are people identified with the country of Canada. This connection may be residential, legal, historical or cultural. For most Canadians, many (or all) of these connections exist and are collectively the source of ...
market, named Astre for the 1973 model year. U.S. Pontiac dealers finally had a subcompact to sell when the Astre made its U.S. debut for the 1975 model year. The Astre used the Vega 140 cu in (2.3-liter) inline-four engine through 1976. The engine features an aluminum-alloy cylinder block and cast-iron cylinder head with a single overhead camshaft (OHC). 1977 models featured Pontiac's 151 cu in (2.5-liter) inline-four engine with a cast-iron block and head with overhead valves (OHV). Transmissions are the three- and four-speed manual, five-speed manual with overdrive (1976–1977 option) and the three-speed automatic. The Astre has a
wheelbase In both road and rail vehicles, the wheelbase is the horizontal distance between the centers of the front and rear wheels. For road vehicles with more than two axles (e.g. some trucks), the wheelbase is the distance between the steering (front ...
and a width. The front suspension is short and long control arms with
coil springs A selection of conical coil springs The most common type of spring is the coil spring, which is made out of a long piece of metal that is wound around itself. Coil springs were in use in Roman times, evidence of this can be found in bronze Fib ...
; the rear suspension is a four-link design with coil springs. A torque-arm design rear suspension replaced the four-link design starting with the 1976 models. The Astre is a
rear wheel drive Rear-wheel drive (RWD) is a form of engine and transmission layout used in motor vehicles, in which the engine drives the rear wheels only. Until the late 20th century, rear-wheel drive was the most common configuration for cars. Most rear-wheel ...
vehicle with a live rear axle. Steering is of a recirculating ball type with a power assist option. The brake system features front disc brakes with solid rotors, and rear
drum brakes A drum brake is a brake that uses friction caused by a set of shoes or pads that press outward against a rotating cylinder-shaped part called a brake drum. The term ''drum brake'' usually means a brake in which shoes press on the inner surfac ...
. Power assist was optional starting in the 1975 model year.


Models and changes

The Astre features Pontiac's
trademark A trademark (also written trade mark or trade-mark) is a type of intellectual property consisting of a recognizable sign, design, or expression that identifies products or services from a particular source and distinguishes them from othe ...
split grill, emblems and steering wheel with an upgraded interior trim to help differentiate itself from the Chevrolet Vega. Other styling differences compared to the Vega include — 1973 model Astres have a black-finish grill and clear parking lamp lenses on ''all'' models, and chrome headlight bezels on non-GTs. Taillight lenses (same as the Vega) have a chrome trim piece surround. The 1974–1977 models have first generation Firebird-styled taillights (also shared with the 1973–1974 Ventura) on the notchback and hatchback. The hatchback coupe features a lower roofline and a fold-down rear seat. The notchback sedan had the lowest price and is the only Vega model with an enclosed trunk. The Safari
wagon A wagon or waggon is a heavy four-wheeled vehicle pulled by draught animals or on occasion by humans, used for transporting goods, commodities, agricultural materials, supplies and sometimes people. Wagons are immediately distinguished from ...
has fixed rear-side glass and a swing-up liftgate. A panel delivery based on the wagon was sold through the 1975 model year. It has steel panels in place of the rear-side glass, and an additional enclosed storage area. An auxiliary front passenger seat was optional. The SJ hatchback and SJ Safari wagon models feature soft
nylon Nylon is a generic designation for a family of synthetic polymers composed of polyamides ( repeating units linked by amide links).The polyamides may be aliphatic or semi-aromatic. Nylon is a silk-like thermoplastic, generally made from pe ...
upholstery, cut pile carpeting, padded and cloth covered door panels, and a fabric headliner, plus rally instruments, the higher-output two barrel engine, four-speed or automatic (over a three-speed manual) gearbox and
radial tires A radial tire (more properly, a radial-ply tire) is a particular design of vehicular tire. In this design, the cord plies are arranged at 90 degrees to the direction of travel, or radially (from the center of the tire). Radial tire construction ...
. A GT package option for the hatchback and Safari wagon combined the lower-line interior with the SJ's performance and handling features. The 1974 model year brought the only major body
design A design is a plan or specification for the construction of an object or system or for the implementation of an activity or process or the result of that plan or specification in the form of a prototype, product, or process. The verb ''to design' ...
changes, due to revised front and rear bumper standards-A slanted header panel with a new split grill and recessed headlamp bezels complement the larger, front 5 mph aluminum bumper. Front and rear license plate brackets were relocated and a larger rear 5 mph aluminum bumper was used increasing the overall length three inches compared to the 1973 models. A revised rear panel on notchback and hatchback models had new Firebird-styled taillights and ventilation extractor grills were eliminated on trunk and hatch lids. The 1975 Astre, introduced in the United States September 1974, gave U.S. Pontiac dealers a needed fuel efficient subcompact. A budget "S" series was added during 1975. More than 267 changes were made including new High-energy
electronic ignition An ignition system generates a spark or heats an electrode to a high temperature to ignite a fuel-air mixture in spark ignition internal combustion engines, oil-fired and gas-fired boilers, rocket engines, etc. The widest application for spark i ...
system and a
catalytic converter A catalytic converter is an vehicle emissions control, exhaust emission control device that converts toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalysis, catalyzing a redox chemic ...
. Power brakes and a tilt steering wheel were new options. The Astre panel delivery was discontinued the end of the model year. A unique Astre package was offered in 1975. Dubbed the 'Lil Wide Track, it was the creation of Jerry Juska of Dymar to help with lackluster Astre sales. Juska took his ideas to Dave Landrith of Motortown Corporation specializing in custom auto work. The package includes a front air dam, rear spoiler, appliance wire mag rims, window louvers, a chrome exhaust tip, and bright stripe decals for the hood, body sides, rear spoiler, door handles, and wheel centers. They assembled a couple of cars in Jan. and Feb. 1975 and took pictures to local
Detroit Detroit ( , ; , ) is the largest city in the U.S. state of Michigan. It is also the largest U.S. city on the United States–Canada border, and the seat of government of Wayne County. The City of Detroit had a population of 639,111 at t ...
dealers where the package gained acceptance. It added a little over $400 to the price of the Astre but dealers felt the difference in looks was worth the price. Production was later switched from an old warehouse in suburban Detroit to a factory beside the
Lordstown Assembly The Lordstown Complex is a factory building and automotive manufacturing plant in Lordstown, Ohio, U.S. Lordstown is an industrial suburb of Youngstown, Ohio. It was a General Motors automobile factory from 1966 to 2019, comprising three faci ...
Vega/Astre plant. An estimated 3,000 Lil Wide Track Astres were ordered by dealerships. The package components were later offered as a dealer installed kit. Astres were confined to a single series for 1976, but they were refined with extensive engine, chassis, and body integrity improvements. A modest facelift included a revised grill. The 2.3 L engine, named Dura-built 140, received improved cooling and durability refinements, and a five years/60,000 mile
warranty In contract law, a warranty is a promise which is not a condition of the contract or an innominate term: (1) it is a term "not going to the root of the contract",Hogg M. (2011). ''Promises and Contract Law: Comparative Perspectives''p. 48 Cambri ...
. The chassis received the new Pontiac Sunbird's upgraded components including the box-section front cross-member, larger rear brakes and torque-arm rear suspension, replacing the four-link design, and effectively eliminating wheel-hop on rough roads. The body received extensive anti-rust improvements. The last-of-the-line 1977s were treated to Pontiac's new 151 cu in " Iron Duke" inline-four engine. Both the cylinder block and cylinder head are cast-iron. Standard in the Astre and Sunbird, they were the first GM vehicles to utilize the engine which was widely used into the 1990s. 1977 Astre models also featured a new vertical design grill and aluminum wheels (13-inch) were a new option. The "Formula" option was also introduced for the Astre's final year, which included the handling package, chrome valve cover, three-piece spoiler, Formula T/A steering wheel and special decals. The 1978–1979 Pontiac Sunbird wagon was a rebranded continuation of the Astre wagon, continuing with a modified 1977 Astre grille rather than taking on the Sunbird coupe's square headlights and flat hood.


Reviews

''
Car and Driver ''Car and Driver'' (''CD'' or ''C/D'') is an American automotive enthusiast magazine. In 2006 its total circulation was 1.23 million. It is owned by Hearst Magazines, who purchased prior owner Hachette Filipacchi Media U.S. in 2011. It was f ...
'' in a 1975 Astre road test, said, "For $180 over the price of a Vega ($ in dollars ), the Astre features upgraded interior trim-primarily the items for which Chevrolet charges $134 in their custom interior ($ in dollars ). You also have the opportunity to go one big step up in luxury if you choose the SJ line which is available in hatchback and wagon body styles." ''Car and Driver'' in a 1977 Astre road test, said, "The Astre ''is'' the Vega-polished and refined and significantly improved, but still a Vega in perhaps its ultimate state of development..It remained for Pontiac to do what Chevrolet probably should have done in the first place: the substitution of the marvelous old Chevy II cast-iron four-cylinder econo-motor for the much-troubled aluminum-block Vega engine. Sliding in and starting the engine was a revelation because its so quiet and smooth compared to the Vega. Also the Astre's interior trim was judged more plush than Vega's. ''Car and Driver'' in its 35th anniversary issue in 1990, amusingly recalled the Astre U.S. debut: "Detroit Fights Back - The Pontiac Astre is introduced. It's a Vega with better decals."Car and Driver-July 1990. 35th Anniversary 1970-1979.


Production

*1973–1974 (GM of Canada) N/A *1975 Panel Delivery - 131 (included in 1975 Total) *1977 Astre Formula - 67 (20 notchbacks and 47 hatchbacks)


References


External links


1973 Canadian Pontaic Astre sales brochure
on oldcarmanualproject.com {{Pontiac Astre Rear-wheel-drive vehicles Subcompact cars Coupés Station wagons Cars introduced in 1974 Motor vehicles manufactured in the United States