Quantum Auto Sales

Your Trusted Source for Used Cars in Garden Grove, Santa Ana & Escondido

Ford Chevrolet Toyota Nissan Honda and more

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Find the Right Vehicle—Without the Hassle

Find the Right Vehicle—Without the Hassle

Reliable cars, trucks, SUVs, and more—priced to move at all three Quantum Auto Sales locations.

Selling Your Car? We’ll Beat Any Offer

Selling Your Car? We’ll Beat Any Offer

Get top dollar—even if you don’t buy from us. Fast, hassle-free, and competitive.

Fast, No-Stress Financing

Fast, No-Stress Financing

Pre-qualify online in minutes with zero credit impact. Know your buying power before you visit.

Family-Owned. Customer-Focused. Value-Driven.

We’ve built our reputation on quality, transparency, and service. Our vehicles are handpicked—many just 2–3 years old and loaded with the features today’s drivers want most. Whether you’re shopping online or visiting in person, we’re here to help you drive away with confidence.

FREE

Shipping under 250 Miles

12,000+

Cars sold and counting!

4.9/5

Average Customer Review

Online financing application

Save an hour at the dealership with an online credit approval.

Trading in

Trading in? Finding out your car's trade-in value is just a few short steps.