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Hours of Operation
Monday 9:00am - 7:00pm
Tuesday 9:00am - 7:00pm
Wednesday 9:00am - 7:00pm
Thursday 9:00am - 7:00pm
Friday 9:00am - 6:00pm
Saturday 9:00am - 3:00pm
Sunday Closed
Monday 7:30am - 5:30pm
Tuesday 7:30am - 5:30pm
Wednesday 7:30am - 5:30pm
Thursday 7:30am - 5:30pm
Friday 7:30am - 5:30pm
Saturday 7:30am - 12:00pm
Sunday Closed
Monday 7:30am - 5:30pm
Tuesday 7:30am - 5:30pm
Wednesday 7:30am - 5:30pm
Thursday 7:30am - 5:30pm
Friday 7:30am - 5:30pm
Saturday 7:30am - 12:00pm
Sunday Closed

New GMC for Sale in Cornwall

GMC (27)
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Pickup (27)
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2020 GMC Sierra 1500 Denali (Stk: 20014) in Cornwall - Image 1 of 1

- Navigation - $443 B/W

Suggested Price:$73,837
Our Price: $71,837

Price does not include taxes and licensing fees.

Finance from $439*(Bi-weekly)
$70,837 x 84 Months @ 3.49% APR with $0 down payment. (3.5% Effective Rate,cost of borrowing $9,051).
Plus taxes and license.

Lease from $424*(Bi-weekly)
$71,837 x 48 Months @ 3.9% APR with $0 down payment. (estimated financing rate, cost of borrowing $8,531)
.
Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:Black
Transmission:Automatic
Drivetrain:4x4
Stock #:20014
City:Cornwall
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2020 GMC Sierra 1500 Elevation (Stk: 20021) in Cornwall - Image 1 of 1

- BOX LINER - $359 B/W

Suggested Price:$60,377
Our Price: $58,377

Price does not include taxes and licensing fees.

Finance from $356*(Bi-weekly)
$57,377 x 84 Months @ 3.49% APR with $0 down payment. (3.49% Effective Rate,cost of borrowing $7,321).
Plus taxes and license.

Lease from $316*(Bi-weekly)
$58,377 x 48 Months @ 3.9% APR with $0 down payment. (estimated financing rate, cost of borrowing $7,174)
.
Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:Black
Transmission:Automatic
Drivetrain:4x4
Stock #:20021
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
2020 GMC Sierra 1500 Elevation (Stk: 20024) in Cornwall - Image 1 of 1

- BOX LINER - $361 B/W

Suggested Price:$60,707
Our Price: $58,707

Price does not include taxes and licensing fees.

Finance from $358*(Bi-weekly)
$57,707 x 84 Months @ 3.49% APR with $0 down payment. (3.48% Effective Rate,cost of borrowing $7,364).
Plus taxes and license.

Lease from $318*(Bi-weekly)
$58,707 x 48 Months @ 3.9% APR with $0 down payment. (estimated financing rate, cost of borrowing $7,213)
.
Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:Red
Transmission:Automatic
Drivetrain:4x4
Stock #:20024
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
2020 GMC Sierra 1500 SLE (Stk: 20029) in Cornwall - Image 1 of 1

- Kodiak Edition - $348 B/W

Suggested Price:$58,652
Our Price: $56,652

Price does not include taxes and licensing fees.

Finance from $345*(Bi-weekly)
$55,652 x 84 Months @ 3.49% APR with $0 down payment. (3.5% Effective Rate,cost of borrowing $7,108).
Plus taxes and license.

Lease from $306*(Bi-weekly)
$56,652 x 48 Months @ 3.9% APR with $0 down payment. (estimated financing rate, cost of borrowing $6,968)
.
Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:Other
Transmission:Automatic
Drivetrain:4x4
Stock #:20029
City:Cornwall
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2020 GMC Sierra 1500 AT4 (Stk: 20031) in Cornwall - Image 1 of 1

- $398 B/W

Suggested Price:$66,567
Our Price: $64,567

Price does not include taxes and licensing fees.

Finance from $394*(Bi-weekly)
$63,567 x 84 Months @ 3.49% APR with $0 down payment. (3.49% Effective Rate,cost of borrowing $8,121).
Plus taxes and license.

Lease from $374*(Bi-weekly)
$64,567 x 48 Months @ 3.9% APR with $0 down payment. (estimated financing rate, cost of borrowing $7,728)
.
Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:White
Transmission:Automatic
Drivetrain:4x4
Stock #:20031
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
2020 GMC Sierra 1500 AT4 (Stk: 20028) in Cornwall - Image 1 of 1

- Navigation - $435 B/W

Suggested Price:$72,607
Our Price: $70,607

Price does not include taxes and licensing fees.

Finance from $431*(Bi-weekly)
$69,607 x 84 Months @ 3.49% APR with $0 down payment. (3.48% Effective Rate,cost of borrowing $8,903).
Plus taxes and license.

Lease from $410*(Bi-weekly)
$70,607 x 48 Months @ 3.9% APR with $0 down payment. (estimated financing rate, cost of borrowing $8,442)
.
Plus taxes and license.

View Details
Body Style:Pickup
Engine:6.2L 8cyl
Exterior Colour:Black
Transmission:Automatic
Drivetrain:4x4
Stock #:20028
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
2020 GMC Sierra 1500 AT4 (Stk: 20050) in Cornwall - Image 1 of 1

- AT4 PREMIUM PKG - $472 B/W

Suggested Price:$78,652
Our Price: $76,652

Price does not include taxes and licensing fees.

Finance from $469*(Bi-weekly)
$75,652 x 84 Months @ 3.49% APR with $0 down payment. (3.48% Effective Rate,cost of borrowing $9,662).
Plus taxes and license.

Lease from $446*(Bi-weekly)
$76,652 x 48 Months @ 3.9% APR with $0 down payment. (estimated financing rate, cost of borrowing $9,157)
.
Plus taxes and license.

View Details
Body Style:Pickup
Engine:6.2L 8cyl
Exterior Colour:White
Transmission:Automatic
Drivetrain:4x4
Stock #:20050
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
2020 GMC Sierra 1500 Elevation (Stk: 20052) in Cornwall - Image 1 of 1

- Assist Steps - $347 B/W

Suggested Price:$58,339
Our Price: $56,339

Price does not include taxes and licensing fees.

Finance from $343*(Bi-weekly)
$55,339 x 84 Months @ 3.49% APR with $0 down payment. (3.51% Effective Rate,cost of borrowing $7,070).
Plus taxes and license.

Lease from $305*(Bi-weekly)
$56,339 x 48 Months @ 3.9% APR with $0 down payment. (estimated financing rate, cost of borrowing $6,924)
.
Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:Red
Transmission:Automatic
Drivetrain:4x4
Stock #:20052
City:Cornwall
Seaway Chevrolet Cadillac Buick GMC
2020 GMC Sierra 1500 Denali (Stk: 20069) in Cornwall - Image 1 of 1

- SiriusXM - $439 B/W

Suggested Price:$73,202
Our Price: $71,202

Price does not include taxes and licensing fees.

Finance from $435*(Bi-weekly)
$70,202 x 84 Months @ 3.49% APR with $0 down payment. (3.48% Effective Rate,cost of borrowing $8,971).
Plus taxes and license.

Lease from $420*(Bi-weekly)
$71,202 x 48 Months @ 3.9% APR with $0 down payment. (estimated financing rate, cost of borrowing $8,458)
.
Plus taxes and license.

View Details
Body Style:Pickup
Engine:5.3L 8cyl
Exterior Colour:Dark Grey
Transmission:Automatic
Drivetrain:4x4
Stock #:20069
City:Cornwall
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