A Chevrolet Vega variant for Canadian markets
Pontiac Astre SJ Safari
Wagon - 75
The Pontiac Astre is a subcompact automobile that was
marketed by the Pontiac division of General Motors as a
rebadged variant of the Chevrolet Vega. Initially
marketed in Canada for model years 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 and Toyota Corolla.
Built
on
the
H-body
platform,
the
car
was
available
in
hatchback,
notchback,
wagon,
and
panel
delivery
body
styles.
The
Astre
shared
the
aluminum-block
2.3
liter
inline-four
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 line.
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
formed
a
GM
corporate
design
team
exclusively
for
the
Chevrolet
Vega
headed
by
William
Munser,
who
had
worked
on
the
Camaro.
The
Pontiac
Division
was
given
its
own
version
of
the
Vega
for
the
Canadian
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
97.0-inch
(2,460
mm)
wheelbase
and
a
65.4-inch
(1,660
mm)
width.
The
front
suspension
is
short
and
long
control
arms
with
coil
springs;
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
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.
Power
assist
was
optional
starting
in
the 1975 model year.
Models and changes
The
Astre
features
Pontiac's
trademark
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)
had
a
chrome
trim
piece
surround.
1974-1977
models
have
first
generation
Firebird-styled
taillights (also shared with the 1973/74 Ventura) on the Notchback and Hatchback.
The
Hatchback
Coupe
featured
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
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
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
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
changes,
due
to
revised
front
and
rear
5
mph
(8.0
km/h)
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
system
and
a
catalytic
converter.
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
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
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.
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
and
'79
Pontiac
Sunbird
wagon
was
a
rebranded
continuation
of
the
Astre
wagon,
continuing
with
a
modified
1977
Astre
grille
rather
than
taking
on
the
Sunbird
coupes'
square
headlights and flat hood.
Reviews
Car
and
Driver
in
a
1975
Astre
road
test,
said,
"For
$180
over
the
price
of
a
Vega,
the
Astre
features
upgraded
interior
trim-primarily
the
items
for
which
Chevrolet
charges
$134
in
their
custom
interior.
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."
1975
Engine
2,3 litres
4 cylinders
Lenght
4,48 m
Widht
1,66 m
The collections Astre was bought new
with all available options.
Photos mainly by Matti Kreivilä. Historical facts and technical details of the vehicles provided by Wikipedia. Movies YouTube.