• 2017 Chevy Silverado

    Newest and Most Popular Models

    Customers don’t want a car that has been sitting at the dealership for a long time – that’s why we make it easy for shoppers to see the newest and most popular vehicles that have hit the lot most recently. When you visit us for a test drive, we’ll be sure to show you all our top models, from sedans to SUVs. We feature models that are the newest and most popular on the lot, so take a look at what we have and stop by Rock Auto Group before they’re taken!

Freshest and Brand New Inventory

These vehicles have JUST been added to our inventory; test drive them before anyone else opens the door!

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We at Rock Auto Group have specifically gathered inventory searches that customers commonly browse online, because we want to do the difficult work for you. Right when you step foot on the lot, you’ll be able to further explore the vehicles you’ve been waiting to get to know. Whether you’re looking for a used Ford, a used Dodge, or a used Mercedes-Benz, you can peruse our specific inventory of certain trims, models, or features available. See the custom inventory we’ve created, and find the model that’s right for you!

Chevrolet Silverado 1500

Used Chevrolet Silverado 1500

Want to feel like royalty while you get work done in the San Diego area? Check out our used Chevrolet Silverado 1500 models for sale.

Ford Escape

Used Ford Escape

Choose a Ford crossover that’s as capable off-road as it is on the San Diego roads — all at a reduced price.


Used Mercedes-Benz Specials

Save even more money on your used luxury car purchase when you buy one of our used Mercedes-Benz at a discount.

Dodge Grand Caravan

Used Dodge Grand Caravan

If you’re looking for a great minivan for your family at a reduced price in San Diego, take a look at our available used Dodge Grand Caravan models for sale.

We’re incredibly active at Rock Auto Group, so make sure to follow us on social media to keep in touch with the latest specials, cars on the lot, and news around El Cajon!

Latest News at Rock Auto Group

  • How Does Trading in a Car Work?

    Contact Our Finance Center San Diego drivers enjoy having a car that makes sense for their needs, which sometimes means getting out with the old and in with the new. If you currently have a vehicle that’s no longer working for you, then you may want to trade it in for one of our used…

  • How Many Times Does a Tire Rotate in a Mile?

    Schedule Service The tires on your vehicle work hard every day to get you where you need to go in San Diego, but how many times does a tire rotate in a mile? In most cases, a tire that’s two-feet in diameter will rotate about 840 times in one mile at a speed of 60…

  • How Do You Measure Tire Tread Depth?

    Read Our Blog Use a tread depth gauge, if you have one handy, to see if your tire tread is between 10/32nds of an inch and 2/32nds of an inch. If you don’t have a tread depth gauge, insert a penny with Lincoln’s head down into your tire’s grooves — if you can see the top…

Customer Reviews

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Yelp Sep 16, 2018

I found Rock Auto Group through a vehicle search on Car Fax. They had my dream vehicle and got me a fabulous deal. Victor Helmcke was friendly, helpful and a pleasure to spend time with. Everyone was friendly and very low pressure. I totally recommend this dealership.

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Yelp Aug 20, 2018

WOW,WOW this is the best car buying experience i have ever had.I'm so grateful for the honesty and transparency  of everyone here.

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Google Aug 15, 2018

Decent guys. Just to pay attention to their math

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Google Jul 5, 2018

They were professional & nice And the cars are well priced Very good deals can't go wrong

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Yelp Jul 5, 2018

Great customer service here, and I loved how quickly and easily they got me into a car, and I just love my car. I had to go down to the dealer after purchasing my car to get a part that was missing on my car, and they ordered it for me free of charge and installed it. I was so pleased. They also have the cleanest bathroom I have ever seen at an auto dealer! Love my car, loved the sales men, loved how very quickly they got me into my car and out the door. From the moment I got there until the moment I was driving off the lot it was a pleasure and fast. I have nothing bad to say about Rock Auto Group. And, I hope in the future to business with them again!

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Google May 10, 2018

Great place to buy your next car, truck or SUV. Huge inventory, great prices and service

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Google Apr 27, 2018

Love my car I bought from them.

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Yelp Apr 20, 2018

I have to tell you, I was initially very worried about the price ($17,000) Shawn was asking for the 2004 Mercedes SL-55 AMG.  $3500 under Kelly Blue Book.  So, being a shade tree mechanic, I checked everything including a pressure check for a cracked head gasket (my biggest worry due to the $8k repair).  I found three issues with the car: 1. the power steering pump bearings were making noise. 2. the front bumper facade was broken in 2 places, and 3. the passenger side window had "fallen" about 1/4" and was making a lot of wind noise.   So I figured I had found the $3500 worth of repairs needed to bring it up to KBB value.  The car was definately in good shape, relatively low mileage Shawn asked me if I found anything wrong with the car and of course I told him.  His exact words were "don't worry, I'll have it repaired for you, no cost"."We only use dealer supplied parts".  "I want you to be happy and tell your friends." I didn't even get to haggle on the price and I love to spend hours haggling!!!  He gave me KBB value + $500 for my trade in.  Where's the fun in that??? "Wow" - that is all I can say.  The car is in the shop now getting the new bumper facade painted and installed ($1400 + Labor), PS pump installed ($250 + Labor), and the passenger window adjusted ($75 Labor).  They said 2 days - it'll take 3.  So, ok.  No big deal for a good repair job and at no expense to me.  Oh, did I mention the loaner car at no cost. Shawn offered to do the 90k mile warranty at his cost. I haven't investigated what that will save me... All I can say, if they have the car you want.  You won't be disappointed. They have certainly earned my business and for you ex-military guys:  That's a no-shitter.

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Google Apr 11, 2018

Great service! Salesman was ver friendly and helpful.

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Google Mar 28, 2018

Review Update: Shawn Segart, the owner of Rock Auto Group, has gotten involved and taken every effort to make things right. He even paid for us take our car to an independent third party for an inspection so we could be confident we weren't going to keep having issues. If you're having any problems with Rock Auto Group, I recommend taking the time to get in touch with him directly. ----The Rock Auto Group claims their vehicles go through inspections and safety checks before they are sold - but they don't. I bought a vehicle from them only to find out the headlights didn't work and a seatbelt was broken.Fast forward a month and the check oil light comes on. We go in for a replacement to find out all three gearboxes were low on oil and one had so many shavings in it that you could tell it had never been changed. The General Manager is an absolute joke and should be fired. Every other word out of his mouth is "I have to check with the owner", who just happens to always be off. Why have a manager who is incapable of making a decision and is running your business into the ground?

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464 W Main St • El Cajon, CA 92020

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Today's Hours:

Open Today! Sales: 9:30am-7:30pm

Service: Closed

Rock Auto Group

464 W Main St El Cajon, CA

Phone: 855-978-7515



Phone: 619-401-1500

464 W Main St El Cajon, CA


Phone: 619-277-9080

464 W Main St El Cajon, CA
32.79535 -116.96759
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Rock Auto Group
Rock Auto Group
464 W Main St
El Cajon, CA, 92020 United States
Rock Auto Group 32.79535, -116.96759.