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MasterCars Inc is a company rich in automotive and motorcycling industry experience. We are known as the St. Louis Corvette Kings. Gary & Alex Rosenberger have over 70 years combined auto and motorcycle industry experience. They founded this company with vision of bringing quality, late model, upscale vehicles and motorcycles to the St. Louis Metro East area for a good value with a friendly, low pressure atmosphere.

MasterCars has achieved this goal. We are now an integral part of the Granite City IL business community.
Services
It's easy to look for cars online, but it's not always easy to find what you're looking for. There are a limited number of used cars in Granite City, Illinois, so it might be tough to find an exact vehicle that you prefer. If you've got your heart set on a specific make and model, don't give up if you don't see it in our online inventory we can find it for you!
We have on the spot, bank financing from large, regional banks, auto finance companies and just about every credit union in the region. Our vast line of lenders allows us to offer financing for A+++ credit, at super low rates all the way to previously bankrupt customers. Want to get pre-approved now?
That's why most of our vehicles come standard with a 90 Day/3,000 Mile Limited Warranty* (INCLUDING MOTORCYCLES!) if not still covered under the manufacturer's warranty. Most of our vehicles also qualify for up to 7 year, 100,000 mile, bumper to bumper warranties, at competitive prices. Our extended warranties are underwritten by AUL, ASC & Phoenix American.
If you're looking for the highest quality used cars and the best customer service in Illinois, contact us today. We can help get you in the luxury used car you've always wanted. Our customer service exceeds our customers' expectations each and every time. Our inventory is filled with the best selection of used cars - and our dealership is a premier auto dealer in.
Reviews (11)
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Christine Waters
May 31, 2022
I have heard about Mastercars Inc on the radio for several years, and after a disappointing offer from a "regular" dealer for my car, I thought it wouldn't hurt to give them a try. So I took my car to them to see what they would offer, and they did not let me down! Gary, Todd, and the rest of the gang were simply a class act, and had us out of there in minutes with a check!

No matter what sort of transportation you might be looking for, do yourself a favor and check with Mastercars Inc. BEFORE you go anywhere else.at the very least, you know you will be dealing with honesty and class! James and Christine Waters
Nick Marmuziewicz
May 19, 2022
Being able to ride my bike as a kid to check out cars and now buying one I can't thank Todd and everyone at master cars enough for making it happen.
Eugene Johnson
Apr 29, 2022
Alright so I purchased a 2016 CTS from here. This was the best buying experience ever. They got me great financing & was very helpful/friendly. I made the mistake of waiting too long on deciding to have extended warranty. They went above & beyond to make that happen for me. If they don't have the car you're looking for. They will try & locate one for you & discuss pricing through them. I highly recommend them. Again great great customer service.
Lawrence Ritchie
Apr 18, 2022
Master Class Cars have exceeded my expectations! A pleasant car buying experience, most of it done online. Other dealerships turned me away, wanting $12,000 down payment. Master Cars acquired financing for me at $0 down. They are true car guys selling cars. They made it possible for me, they can do the same for you. Don't hesitate to contact them.

I am glad I did. They are true car guys selling cars. The salesman of the year, great guy Todd, even came to my house so my wife could sign the paperwork. They really go above and beyond to make the sale. Call them now and get the car you want. Don't waste your time at other dealerships that treat you like a number. These guys make you feel part of the family.
Antonio Blazevige
Jan 28, 2022
Be careful dealing with this dealership. They lied about the vehicle I purchased from them saying "non smoker" - has huge hole in the driver seat! How was that missed? Truck smells terribly of smoke. I asked about cracks in the dash: Response was "only one small unnoticeable crack" when in reality there are 3 major cracks and the dash is flopping around.

They also said the body had no work done and the vehicle was accident free, when in reality it has major sections of the body replaced, so poorly that its obvious only in person. Once I received delivery, I called to complain and they assured me they would file a complaint on my behalf, except they waited and waited and eventually no claim was possible. HUGE HUGE NO. DON'T DO IT. SHADY DEALERSHIP NIGHTMARE. GO SOMEWHERE ELSE! not worth it
Denis Alvarez
Jan 20, 2022
Big Thanks! to Todd at MasterCars for making the car buying experience the best I have had. Todd was on top of each single step of the process and followed up daily until car was delivered to my driveway. Appreciate the A+ service.
Zachary Atterberry
Dec 23, 2021
I got referred to master cars by my friend I'm not one to buy from used car dealerships I normally buy from the dealership But these people that work at Master Cars are awesome when they found out my interest rate was going to be astronomical they call a bank in Saint Jacob called State Bank of Saint Jacobs they approve me no problem anger my jeep refinanced and saved me $300 a month these are awesome people to work with Todd was amazing to speak with and work with his coworker that took me on the test drive was amazing as well I appreciate running into the people that master cars and look forward to working with them in the future.
Christie Marsala
Sep 11, 2021
Absolutely the best car lot I've have ever had dealings with. Shout out to Todd the best salesmen in the market. Would definitely recommend Master Cars any day over the rest. Thanks so much guys! Your the best!
Jim F.
Jun 08, 2021
This was by far the best car buying experience I've ever had. There was no haggling or back and forth. We had the deal done very quickly. All of the staff that my wife and I met were awesome. I'd definitely buy from them again. I also highly recommend this dealership.
Wade Barnes
May 03, 2021
These guys are great! I bought a Harley and couldn't be happier. Price was on point, excellent sales staff "Dino" and the finance department. If you need clean bike or car I strongly suggest you check out Master Cars!
Michael M.
Dec 01, 2020
These guys are great! I would like to give Todd Ahlers a shoutout for being a great salesman and unlike other dealerships keeping it a low stressful environment and not being pushy at all. Would definitely purchase more vehicles in the future from here. Master Cars has a awesome selection even if your not in the market for a car, truck or motorcycle go check them out!