Hertrich Buick GMC of Seaford in Seaford, DE
Dealer Analysis 18 Deals Found
80 Cars for sale now, starting at $14,988
Avg. Price: 27889.1
Typical Price Range: 11977.0–45990.0
Average Savings ($) Below Market Price
Avg. Savings: $2,535
Save up to $5,177 below est. market price
% of Used Cars That Are Deals
Avg. Mileage: 56009.6
Typical Mileage Range: 6175.0–113070.0
% of Listings with Valid Price, Mileage, and Photo
- This Dealer
- Average Dealer
Hertrich Buick GMC of Seaford is given a 4.5 "overall dealer rating" based on our analysis of 308 cars the dealer recently listed for sale. This assesses the dealer's price competitiveness, responsiveness to inquiries, and information transparency (how good the dealers are at providing basic information such as vehicle photos, price and mileage).
Inventory Analysis
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Showing 1-20 of 80 Listings
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$45,980
2026 Buick Enclave Preferred
- Seaford, DE (0 mi away)
- 2327 Below similar cars
- 420 Below MSRP
- Listed 1 day ago
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New 2026 Buick Enclave Preferred for Sale
0 Miles
Seaford, DE (0 mi away)
| Category | New Cars |
| Price | $45,980 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 4-cylinder |
| Fuel Type | Gas |
| Seats | 7 Seats |
| VIN | 5GAERAKS3TJ209703 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, captain's chair, child safety, navigation, backup camera |
| Mileage | 0 mi. |
| Transmission | Automatic |
| Exterior Color | Blue |
| Interior Color | Black |
| MPG | 22 combined |
| Drivetrain | Front-wheel drive |
$49,390
2026 GMC Sierra 1500 Elevation Standard
- Seaford, DE (0 mi away)
- 4197 Below similar cars
- 4210 Below MSRP
- Listed 4 days ago
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New 2026 GMC Sierra 1500 Elevation Standard for Sale
4 Miles
Seaford, DE (0 mi away)
| Category | New Cars |
| Price | $49,390 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 4-cylinder |
| Fuel Type | Gas |
| Seats | 6 Seats |
| VIN | 3GTPUJEKXTG230051 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, navigation, backup camera, alloy wheels |
| Mileage | 4 mi. |
| Transmission | Automatic |
| Exterior Color | Unknown |
| Interior Color | Black |
| Drivetrain | 4X4 |
$39,888
2021 GMC Yukon XL SLT
- 98,351 Miles
- Seaford, DE (0 mi away)
- $489 Below market value of $40,377
- Listed 9 days ago
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Used 2021 GMC Yukon XL SLT for Sale
98,351 Miles
Seaford, DE (0 mi away)
| Category | Used Cars |
| Price | $39,888 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 8-cylinder |
| Fuel Type | Gas |
| Seats | 8 Seats |
| VIN | 1GKS2GKD5MR263442 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, backup camera, leather upholstery, internet radio |
| Mileage | 98,351 mi. |
| Transmission | Automatic |
| Exterior Color | Blue |
| MPG | 16 combined |
| Drivetrain | 4X4 |
$24,998
2013 Ford Mustang GT
- 51,767 Miles
- Seaford, DE (0 mi away)
- Remaining Lifespan: 7.6514845 yrs
- $1,784 Above market value of $23,214
- Listed 9 days ago
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Used 2013 Ford Mustang GT for Sale
51,767 Miles
Seaford, DE (0 mi away)
| Category | Used Cars |
| Price | $24,998 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 8-cylinder |
| Fuel Type | Gas |
| Seats | 4 Seats |
| VIN | 1ZVBP8CF0D5250962 |
| Location | Seaford, DE - 0 mi. |
| Features | alloy wheels, power outlet, anti-theft system |
| Mileage | 51,767 mi. |
| Exterior Color | Gray |
| Interior Color | Gray |
| Drivetrain | Rear-wheel drive |
$17,388
2020 GMC Terrain SLE
- 81,979 Miles
- Seaford, DE (0 mi away)
- Remaining Lifespan: 6.3314342 yrs
- $139 Above market value of $17,249
- Listed 9 days ago
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Used 2020 GMC Terrain SLE for Sale
81,979 Miles
Seaford, DE (0 mi away)
| Category | Used Cars |
| Price | $17,388 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 4-cylinder |
| Fuel Type | Gas |
| Seats | 5 Seats |
| VIN | 3GKALMEV7LL316224 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, backup camera, alloy wheels, voice recognition |
| Mileage | 81,979 mi. |
| Transmission | Automatic |
| Exterior Color | Silver |
| Interior Color | Black |
| MPG | 27 combined |
| Drivetrain | Front-wheel drive |
$35,888
2020 Chevrolet Silverado 1500 LTZ
- 64,407 Miles
- Seaford, DE (0 mi away)
- Remaining Lifespan: 8.324189 yrs
- $700 Below market value of $36,588
- Listed 9 days ago
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Used 2020 Chevrolet Silverado 1500 LTZ for Sale
64,407 Miles
Seaford, DE (0 mi away)
| Category | Used Cars |
| Price | $35,888 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 8-cylinder |
| Fuel Type | Gas |
| Seats | 6 Seats |
| VIN | 1GCUYGED5LZ300373 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, backup camera, leather upholstery, alloy wheels |
| Mileage | 64,407 mi. |
| Transmission | Automatic |
| Exterior Color | White |
| Interior Color | Black |
| MPG | 18 combined |
| Drivetrain | 4X4 |
$91,888
$92,9982025 GMC Yukon AT4 Ultimate
- 7,118 Miles
- Seaford, DE (0 mi away)
- $4,345 Below market value of $96,233
- Low annual miles
- Listed 11 days ago
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Used 2025 GMC Yukon AT4 Ultimate for Sale
7,118 Miles
Seaford, DE (0 mi away)
| Category | Used Cars |
| Price | $91,888 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 8-cylinder |
| Fuel Type | Gas |
| Seats | 7 Seats |
| VIN | 1GKS2VRL3SR195785 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, navigation, backup camera, leather upholstery |
| Mileage | 7,118 mi. |
| Transmission | Automatic |
| Exterior Color | Unknown |
| Interior Color | Black |
| MPG | 16 combined |
| Drivetrain | 4X4 |
$24,998
2015 GMC Yukon SLT
- 73,083 Miles
- Seaford, DE (0 mi away)
- Remaining Lifespan: 4.7806854 yrs
- $223 Below market value of $25,221
- Listed 11 days ago
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Used 2015 GMC Yukon SLT for Sale
73,083 Miles
Seaford, DE (0 mi away)
| Category | Used Cars |
| Price | $24,998 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 8-cylinder |
| Fuel Type | Flex fuel |
| Seats | 8 Seats |
| VIN | 1GKS2BKC0FR500772 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, backup camera, leather upholstery, internet radio |
| Mileage | 73,083 mi. |
| Transmission | Automatic |
| Exterior Color | White |
| MPG | 18 combined |
| Drivetrain | 4X4 |
$36,637
$37,8882021 GMC Sierra 1500 SLT
- 66,406 Miles
- Seaford, DE (0 mi away)
- Remaining Lifespan: 8.517206 yrs
- $1,404 Below market value of $38,041
- Listed 11 days ago
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Used 2021 GMC Sierra 1500 SLT for Sale
66,406 Miles
Seaford, DE (0 mi away)
| Category | Used Cars |
| Price | $36,637 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 8-cylinder |
| Fuel Type | Gas |
| Seats | 6 Seats |
| VIN | 3GTU9DED8MG168853 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, backup camera, leather upholstery, alloy wheels |
| Mileage | 66,406 mi. |
| Transmission | Automatic |
| Exterior Color | Black |
| Interior Color | Black |
| Drivetrain | 4X4 |
$30,780
2026 Buick Envista Sport Touring
- Seaford, DE (0 mi away)
- $321 Above similar cars
- Listed 11 days ago
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New 2026 Buick Envista Sport Touring for Sale
4 Miles
Seaford, DE (0 mi away)
| Category | New Cars |
| Price | $30,780 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 3-cylinder |
| Fuel Type | Flex fuel |
| Seats | 5 Seats |
| VIN | KL47LBEP6TB109637 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, navigation, backup camera, internet radio |
| Mileage | 4 mi. |
| Transmission | Automatic |
| Exterior Color | Blue |
| Interior Color | Black |
| MPG | 22 combined |
| Drivetrain | Front-wheel drive |
$29,780
2026 Buick Envista Sport Touring
- Seaford, DE (0 mi away)
- 679 Below similar cars
- Listed 11 days ago
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New 2026 Buick Envista Sport Touring for Sale
3 Miles
Seaford, DE (0 mi away)
| Category | New Cars |
| Price | $29,780 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 3-cylinder |
| Fuel Type | Flex fuel |
| Seats | 5 Seats |
| VIN | KL47LBEP9TB106232 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, navigation, backup camera, internet radio |
| Mileage | 3 mi. |
| Transmission | Automatic |
| Exterior Color | Gray |
| Interior Color | Black |
| MPG | 22 combined |
| Drivetrain | Front-wheel drive |
$24,998
2020 GMC Acadia Denali
- 89,940 Miles
- Seaford, DE (0 mi away)
- Remaining Lifespan: 6.83754 yrs
- $1,972 Above market value of $23,026
- Listed 12 days ago
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Used 2020 GMC Acadia Denali for Sale
89,940 Miles
Seaford, DE (0 mi away)
| Category | Used Cars |
| Price | $24,998 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 6-cylinder |
| Fuel Type | Gas |
| Seats | 6 Seats |
| VIN | 1GKKNPLS5LZ221033 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, captain's chair, child safety, navigation, backup camera |
| Mileage | 89,940 mi. |
| Transmission | Automatic |
| Exterior Color | White |
| MPG | 22 combined |
| Drivetrain | Front-wheel drive |
$82,610
2026 GMC Sierra 2500HD SLT
- Seaford, DE (0 mi away)
- $4,310 Above similar cars
- Listed 12 days ago
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New 2026 GMC Sierra 2500HD SLT for Sale
7 Miles
Seaford, DE (0 mi away)
| Category | New Cars |
| Price | $82,610 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 8-cylinder |
| Fuel Type | Diesel |
| Seats | 6 Seats |
| VIN | 1GT4UNEY5TF130682 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, navigation, backup camera, leather upholstery |
| Mileage | 7 mi. |
| Transmission | Automatic |
| Exterior Color | White |
| Interior Color | Black |
| Drivetrain | 4X4 |
$84,995
2026 GMC Yukon AT4
- Seaford, DE (0 mi away)
- 1652 Below similar cars
- Listed 12 days ago
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New 2026 GMC Yukon AT4 for Sale
3 Miles
Seaford, DE (0 mi away)
| Category | New Cars |
| Price | $84,995 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 8-cylinder |
| Fuel Type | Gas |
| Seats | 8 Seats |
| VIN | 1GKS2CKD8TR216350 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, navigation, backup camera, leather upholstery |
| Mileage | 3 mi. |
| Transmission | Automatic |
| Exterior Color | Black |
| MPG | 17 combined |
| Drivetrain | 4X4 |
$29,780
2026 Buick Envista Sport Touring
- Seaford, DE (0 mi away)
- 679 Below similar cars
- Listed 14 days ago
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New 2026 Buick Envista Sport Touring for Sale
0 Miles
Seaford, DE (0 mi away)
| Category | New Cars |
| Price | $29,780 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 3-cylinder |
| Fuel Type | Flex fuel |
| Seats | 5 Seats |
| VIN | KL47LBEP8TB102074 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, navigation, backup camera, internet radio |
| Mileage | 0 mi. |
| Transmission | Automatic |
| Exterior Color | Black |
| Interior Color | Black |
| MPG | 22 combined |
| Drivetrain | Front-wheel drive |
$21,998
2018 Mercedes-Benz E-Class E 300
- 61,568 Miles
- Seaford, DE (0 mi away)
- Remaining Lifespan: 10.796284 yrs
- $455 Above market value of $21,543
- Listed 15 days ago
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Used 2018 Mercedes-Benz E-Class E 300 for Sale
61,568 Miles
Seaford, DE (0 mi away)
| Category | Used Cars |
| Price | $21,998 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 4-cylinder |
| Fuel Type | Gas |
| Seats | 5 Seats |
| VIN | WDDZF4JB4JA302616 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, navigation, backup camera, sunroof |
| Mileage | 61,568 mi. |
| Transmission | Automatic |
| Exterior Color | Silver |
| Interior Color | Silver |
| MPG | 25 combined |
| Drivetrain | Rear-wheel drive |
$80,998
2024 GMC Sierra 2500HD AT4X
- 25,921 Miles
- Seaford, DE (0 mi away)
- $168 Above market value of $80,830
- Low annual miles
- Listed 15 days ago
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Used 2024 GMC Sierra 2500HD AT4X for Sale
25,921 Miles
Seaford, DE (0 mi away)
| Category | Used Cars |
| Price | $80,998 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 8-cylinder |
| Fuel Type | Diesel |
| Seats | 5 Seats |
| VIN | 1GT49ZEY6RF304020 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, child safety, navigation, backup camera, leather upholstery |
| Mileage | 25,921 mi. |
| Transmission | Automatic |
| Exterior Color | Black |
| Interior Color | Black |
| Drivetrain | 4X4 |
$88,888
$88,8982026 GMC Yukon XL Denali
- 318 Miles
- Seaford, DE (0 mi away)
- $92.7K avg. price with 2K avg. miles
- Low annual miles
- Listed 16 days ago
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Used 2026 GMC Yukon XL Denali for Sale
318 Miles
Seaford, DE (0 mi away)
| Category | Used Cars |
| Price | $88,888 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 8-cylinder |
| Fuel Type | Gas |
| Seats | 7 Seats |
| VIN | 1GKS2JKL5TR164090 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, captain's chair, child safety, navigation, backup camera |
| Mileage | 318 mi. |
| Transmission | Automatic |
| Exterior Color | White |
| MPG | 16 combined |
| Drivetrain | 4X4 |
$41,888
$41,9982026 Kia Carnival EX
- 1,280 Miles
- Seaford, DE (0 mi away)
- $305 Above market value of $41,583
- Low annual miles
- Listed 19 days ago
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Used 2026 Kia Carnival EX for Sale
1,280 Miles
Seaford, DE (0 mi away)
| Category | Used Cars |
| Price | $41,888 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 6-cylinder |
| Fuel Type | Gas |
| Seats | 8 Seats |
| VIN | KNDNC5K39T6595272 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, captain's chair, child safety, navigation, backup camera |
| Mileage | 1,280 mi. |
| Transmission | Automatic |
| Exterior Color | Silver |
| MPG | 21 combined |
| Drivetrain | Front-wheel drive |
$64,825
2026 GMC Acadia Denali Ultimate
- Seaford, DE (0 mi away)
- 2962 Below similar cars
- 75 Below MSRP
- Listed 19 days ago
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New 2026 GMC Acadia Denali Ultimate for Sale
10 Miles
Seaford, DE (0 mi away)
| Category | New Cars |
| Price | $64,825 |
| For Sale By | dealer |
| iSeeCars Dealer Score | |
| Engine | 4-cylinder |
| Fuel Type | Gas |
| Seats | 7 Seats |
| VIN | 1GKENTKS0TJ240241 |
| Location | Seaford, DE - 0 mi. |
| Features | bluetooth, captain's chair, child safety, navigation, backup camera |
| Mileage | 10 mi. |
| Transmission | Automatic |
| Exterior Color | Black |
| MPG | 21 combined |
| Drivetrain | 4X4 |
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