Dealer

O'Neil GMC

Explore a wide selection of high-quality used and certified pre-owned vehicles at O'Neil GMC – your trusted auto dealership in Warminster, PA.









Dealers
78 cars found
Used 31,463 mi

2022 Buick Encore Preferred

Warminster, PA
Gasoline
Automatic
AWD
$18,382
or $320/mo
Used 10,290 mi

2024 Chevrolet Colorado Z71

Warminster, PA
Gasoline
Automatic
AWD
$40,713
or $709/mo
Used 29,023 mi

2025 BMW 7 Series 740i

Warminster, PA
Gasoline
Automatic
AWD
$72,949
or $1,271/mo
Used 98,770 mi

2020 GMC Sierra 1500 AT4

Warminster, PA
Diesel
Automatic
AWD
$33,704
or $587/mo
Used 18,559 mi

2025 Buick Envision Sport Touring

Warminster, PA
Gasoline
Automatic
AWD
$31,536
or $549/mo
Used 10,539 mi

2025 Buick Envision Sport Touring

Warminster, PA
Gasoline
Automatic
AWD
$32,753
or $571/mo
Used 67,113 mi

2017 Ford Escape SE

Warminster, PA
Gasoline
Automatic
AWD
$10,255
or $179/mo
Used 31,144 mi

2020 GMC Terrain SLT

Warminster, PA
Gasoline
Automatic
AWD
$22,770
or $397/mo
Used 68,286 mi

2020 GMC Acadia SLT

Warminster, PA
Gasoline
Automatic
FWD
$20,873
or $364/mo
Used 36,596 mi

2019 GMC Terrain SLE

Warminster, PA
Gasoline
Automatic
AWD
$17,926
or $312/mo
Used 74,975 mi

2022 Subaru Ascent Touring

Warminster, PA
Gasoline
Automatic
AWD
$25,282
or $440/mo
Used 56,807 mi

2023 GMC Acadia SLT

Warminster, PA
Gasoline
Automatic
AWD
$25,946
or $452/mo
Used 26,969 mi

2025 Mazda CX-90 Preferred Package

Warminster, PA
Gasoline
Automatic
AWD
$32,511
or $566/mo
Used 32,127 mi

2024 Buick Encore GX Sport Touring

Warminster, PA
Gasoline
Automatic
AWD
$22,757
or $396/mo
Used 4,476 mi

2024 Buick Encore GX Preferred

Warminster, PA
Gasoline
Automatic
FWD
$21,383
or $373/mo
Used 8,849 mi

2023 RAM Ram 1500 Pickup TRX

Warminster, PA
Gasoline
Automatic
AWD
$85,992
or $1,498/mo