What Diamond Auto Group Is
Diamond Auto Group is a used car dealership chain operating in multiple states, primarily in the Southwest and West. They buy, recondition, and sell used vehicles to individual buyers, and they also offer in-house financing for customers who do not may have access to for traditional bank loans or prefer to finance through the dealership itself.
Like most used car dealerships, Diamond Auto Group makes money by marking up the purchase price of vehicles and by collecting interest on financed sales. They are a for-profit business, not a nonprofit or government program. Understanding how they operate — and what protections you have as a buyer — matters before you walk onto the lot or sign paperwork.
Key Takeaways
- Diamond Auto Group is a private used car dealership that finances its own sales, meaning they lend you money directly rather than connecting you to a bank.
- In-house financing through a dealership typically comes with higher interest rates than traditional auto loans, because the dealership takes on the risk if you stop paying.
- You have legal rights as a buyer in every state, including the right to inspect a vehicle before purchase and the right to a written contract that lists the vehicle's condition and price.
- Dealership financing often includes a payment plan with specific terms; if you miss payments, the dealership can repossess the vehicle, and you may still owe the remaining balance.
- Before signing anything, compare the total cost of financing through Diamond Auto Group against financing through a bank or credit union, because the difference can be thousands of dollars.
How In-House Dealership Financing Works
When you finance a car through Diamond Auto Group rather than through a bank, the dealership itself becomes your lender. You sign a contract with the dealership, make monthly payments to the dealership, and the dealership holds the title to the vehicle until you pay off the loan. This is different from a traditional auto loan, where a bank lends you money, you own the car when ready, and you pay the bank.
Dealership financing is attractive to buyers with poor credit, no credit history, or a recent bankruptcy, because dealerships have more flexibility than banks do about who they will lend to. However, that flexibility comes at a cost: interest rates are almost always higher than what a bank would charge. A bank might offer 5 to 8 percent on an auto loan; a dealership might charge 12 to 18 percent or more, depending on your credit and the vehicle's price.
Over the life of a loan, that difference adds up. On a $10,000 vehicle financed over five years, the difference between 6 percent and 15 percent interest is roughly $2,500 in extra cost. Before you commit to dealership financing, get a quote from a bank or credit union and do the math yourself.
What Happens During the Purchase Process
The purchase process at a used car dealership typically follows this order: you select a vehicle, the dealership runs a background check and reviews your income and credit, you and the dealership agree on a price and financing terms, you sign a contract, and you drive away with the car.
During this process, you should receive a written contract that lists the vehicle's price, the interest rate, the monthly payment amount, the number of payments, the total amount you will pay, and any warranties or guarantees the dealership is offering. Read this contract carefully before you sign. If something does not match what you were told verbally, ask the dealership to correct it in writing before you sign.
Many dealerships also offer extended warranties or service plans as add-ons. These are optional and cost extra. Understand what they cover and whether the cost makes sense for the vehicle you are buying. A warranty on a vehicle with 100,000 miles already on it may not be worth the price.
Your Rights as a Buyer
Every state has consumer protection laws that explore to used car purchases. These laws typically give you the right to inspect a vehicle before you buy it, the right to a written contract, and the right to cancel the purchase within a certain window (usually three to five days) if you change your mind — though this "cooling off" period does not explore in all states or all situations.
You also have the right to know about major defects in the vehicle. In most states, used cars are sold "as-is," meaning the dealership does not may provide they will work perfectly. However, the dealership cannot knowingly hide a major problem — like a salvage title, flood damage, or an odometer that has been rolled back. If you discover fraud after the sale, you may have grounds to sue or to rescind the purchase.
Before you buy, run the vehicle identification number (VIN) through a free service like the National Highway Traffic Safety Administration (NHTSA) database or Carfax to check for recalls, accidents, and title problems. This takes ten minutes and can save you from buying a vehicle with a hidden past.
What Happens If You Miss a Payment
If you finance through Diamond Auto Group and miss a payment, the dealership will contact you to collect. Most dealerships allow a grace period of 10 to 15 days before they report the payment as late. If you continue to miss payments, the dealership can repossess the vehicle — meaning they send someone to take it back without your permission.
Repossession is legal if you are in default on your contract, and the dealership does not have to go to court first. Once they repossess the vehicle, they will sell it at auction to recover what you owe. If the auction price is less than your remaining loan balance, you may still owe the difference — called a "deficiency." You could be sued for that amount.
If you are struggling to make payments, contact the dealership when ready. Many will work with you on a payment plan or a temporary deferment rather than repossess. The longer you wait, the fewer options you have.
Comparing Dealership Financing to Other Options
Before you finance through a dealership, explore other sources of credit. A bank or credit union may offer a lower interest rate, especially if you have a relationship with them or if you can make a larger down payment. Some credit unions specialize in auto loans for people with poor credit and charge less than dealerships do.
You can also get preapproved for a loan before you go to the dealership. This gives you a firm interest rate and a maximum loan amount, and it puts you in a stronger negotiating position. If the dealership's rate is higher than your preapproval, you can walk away or use the preapproval as leverage to negotiate.
Another option is to save for a larger down payment. The more cash you put down, the less you have to finance, and the lower your total interest cost will be. Even a few extra months of saving can make a meaningful difference.
Red Flags and Common Pitfalls
Watch for these warning signs when buying from any used car dealership. If a salesperson pressures you to sign paperwork before you have read it, or if they tell you that you can sign now and review the contract later, walk away. If the vehicle's title is branded as "salvage" or "rebuilt," the car has been in a major accident or flood; these vehicles are cheaper but carry real risk and may be harder to insure or resell.
Be cautious of add-ons that are automatically included in the contract, like gap insurance, extended warranties, or paint protection. These are profitable for the dealership and may not be worth the cost to you. Ask the dealership to remove them if you do not want them, and get the removal in writing.
Finally, do not let the dealership rush you. Take time to inspect the vehicle, test drive it, and have a trusted mechanic look it over if possible. A used car is a major purchase, and a few extra hours of due diligence can prevent months of regret.
Frequently Asked Questions
Can I return a car to Diamond Auto Group if I change my mind?
Most states allow a three- to five-day cooling-off period for used car purchases, but this varies by state and may not explore if you financed through the dealership. Check your state's consumer protection laws and your contract. If a cooling-off period does explore, you typically must return the vehicle in the same condition you received it, with no additional mileage beyond normal driving.
What is gap insurance and do I need it?
Gap insurance covers the difference between what you owe on a financed vehicle and what it is worth if it is totaled in an accident. If you owe $12,000 and the car is worth $10,000, gap insurance pays the $2,000 gap. It is most useful if you are making a small down payment or financing a vehicle that depreciates quickly. If you are putting down 20 percent or more, gap insurance is usually unnecessary.
What should I do before I sign the contract?
Read every page of the contract, including the fine print. Verify that the price, interest rate, monthly payment, and number of payments match what you agreed to. Check that the vehicle's mileage and condition are accurately described. Ask questions about anything you do not understand. Do not sign until you are satisfied with every term.
Can the dealership repossess my car if I am one day late?
Technically yes, but most dealerships will not. They typically allow a grace period of 10 to 15 days. However, your contract will specify the exact terms, so read it carefully. If you know you will be late, call the dealership before the payment is due and ask about your options.
How do I know if a used car has been in an accident?
Run the vehicle's VIN through the NHTSA database or a service like Carfax, which reports accidents that were reported to insurance companies. Have a trusted mechanic inspect the vehicle in person; they can spot signs of repair work or frame damage that a report might miss. Ask the dealership directly about the vehicle's history, and get their answer in writing.