STG Auto Group of Ontario

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STG Auto Group of Ontario We are Inland Empire's premier used car dealership. Explore and choose from over 1,600 quality vehicl

STG Auto Group should be your first stop when you're looking at used cars for sale in LA County, Orange County, and Inland Empire. We make it easy to explore our high-volume and high-quality pre-owned car inventory from all over California. And don't hesitate to schedule an appointment at our car repair center or meet with our auto finance experts!

09/18/2026

Why pay for the β€œbrand new” price when you can get the same year, low miles, clean history, and keep thousands in your pocket? At STG Auto Group, we make used cars feel brand new β€” without the brand new price tag.

Not loud. Just impossible to ignore. The 2024 Mercedes-Benz G 63 β€” where AMG muscle meets timeless design. πŸ”₯ Every angle...
09/18/2026

Not loud. Just impossible to ignore. The 2024 Mercedes-Benz G 63 β€” where AMG muscle meets timeless design. πŸ”₯ Every angle earns a second look. Now at STG Auto Group.

09/18/2026

One Land Cruiser. Endless possibilities. πŸ”οΈ

09/17/2026

GX 550 or Range Rover Sport? πŸ€” Twin-turbo V6, 349 HP, seats 7, and Lexus reliability. Drop your pick below πŸ‘‡

All new or stick with what you know? πŸ‘€ The redesigned BMW X3 β€” flat panels, sharp creases, T-shaped headlights, and one ...
09/17/2026

All new or stick with what you know? πŸ‘€ The redesigned BMW X3 β€” flat panels, sharp creases, T-shaped headlights, and one curved display running the whole dash. Sitting right next to the generation we all grew up on. Both available at STG Auto Group.

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09/17/2026

Try to guess the car brand by these emojis. πŸ‘€

09/15/2026

The last of the legendary V6 4Runner TRD Pro πŸ”₯ No turbos. No batteries. Just pure Toyota power built to last. Would you take this old-school V6 or the new turbo hybrid? πŸ‘€

SMART BUY πŸ’‘ | 2021 Toyota Camry SE for only $20,125 at STG Auto Group. Sporty, dependable, and ready to drive home today...
09/15/2026

SMART BUY πŸ’‘ | 2021 Toyota Camry SE for only $20,125 at STG Auto Group. Sporty, dependable, and ready to drive home today.

09/15/2026

Built different. Sounds different. Hits different. 2025 AMG GT 55 at STG Auto Group. πŸ”₯ Yes or yes? πŸ‘‡

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09/15/2026

Why pay brand-new prices when almost-new gets you the same luxury, low miles, clean history, and thousands in savings? πŸ‘€

Address

10477 Central Avenue
Montclair, CA
91763

Opening Hours

Monday 9am - 9pm
Tuesday 9am - 9pm
Wednesday 9am - 9pm
Thursday 9am - 9pm
Friday 9am - 9pm
Saturday 9am - 9pm
Sunday 9am - 9pm

Telephone

+19093085431

Website

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