Dealership
O'Neil Buick GMC
Warminster, PA
About
O’Neil Buick GMC is a premier provider of Buick, GMC and GM Certified Pre-owned automobiles. We are dedicated and committed to the highest standards of quality and integrity of our products and services. O'Neil Buick GMC proudly serves Warminster & the Philadelphia area. The O'Neil family has been in the auto business for over 50 years.
Services
Inventory
Page 1
Listed Jan 2026 Clean title 
USED · SUV
2025 Buick Envision
Sport Touring · AWD · Automatic
$30,995
Warminster, PA
Fresh Clean title 
USED · SUV
2022 GMC Yukon
SLT · 4WD · Automatic
Contact for price
Warminster, PA
Fresh Clean title USED · SUV
2023 Buick Encore GX
Preferred · FWD · Automatic
Contact for price
Warminster, PA
Fresh Clean title 
USED · Sedan
2004 Ford Taurus
SE · FWD · Automatic
Contact for price
Warminster, PA
Clean title 
USED · Pickup Truck
2023 Ram 1500
Limited · 4WD · Automatic
Contact for price
Warminster, PA
Clean title USED · Pickup Truck
2020 Ram 1500
Rebel · 4WD · Automatic
Contact for price
Warminster, PA
Clean title 
USED · SUV
2023 Chevrolet Traverse
LT Leather · AWD · Automatic
$34,794
Warminster, PA
Clean title USED · SUV
2024 Buick Encore GX
Preferred · FWD · Automatic
$21,767
Warminster, PA
Clean title USED · Pickup Truck
2024 Chevrolet Silverado 1500
High Country · 4WD · Automatic
$60,560
Warminster, PA
Clean title USED · Pickup Truck
2022 GMC Sierra 1500
Elevation · 4WD · Automatic
$41,411
Warminster, PA
Clean title USED · SUV
2025 Chevrolet Traverse
LT · AWD · Automatic
$40,767
Warminster, PA
Clean title USED · SUV
2025 GMC Yukon
Denali Ultimate · 4WD · Automatic
$99,855
Warminster, PA