If the contract to sell the car was silent regarding under what conditions you can repossess the car, then you must seek relief through the courts. It also depends upon the laws in your region - some jurisdictions to not empower private repossession - in these jurisdictions all repossessions must go through the courts.
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Once the judgment is awarded, it is then recommended that you obtain the service of the Sheriff's office to escort you on the premise to retrieve the property due to you. Or you may contract a repo firm.
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Unless the contract specifically allows you to, you can never change a contract unilaterally. You can only change the contract if the all parties agree.
Not without the buyer's consent if a contract was already formed
A contract, if properly drafted, is enforceable. If the buyer requests a release the seller can negotiate or keep the deposit.
The correct statement about contract is that a contract is an agreement between a buyer and a seller. A contract can be a written or oral agreement.
A land contract is a contract between seller and buyer of property. A contract is only made when an agreement between seller and buyer has been reached. The seller becomes the land owner only when the full payment has been made.
There are remedies available to the Seller if a buyer does not purchase the real estate as agreed in a written, fully executed contract. These are only available to the seller if the buyer has signed the contract and there are no limiting conditions such as a financial clause, inspection clause, due diligence period, etc. If the buyer breaches the contract the seller may sue to keep the buyer's deposit, sue for damages caused by the buyer breaching the contract, and may also sue for "specific performance" which would force the buyer to purchase and close on the real estate.
"In finance, a contract for difference is a contract between two different parties. Buyer and seller are involved. The buyer has to pay the seller the difference between the current value of the thing and its value during contract time."
Upon both the buyer and the seller signing the contract.
When it has been signed by the buyer and seller.
The date the Buyer signs it.
requirements contract
The price that the buyer and seller agree on.
The contract is not enforceable unless both parties signed it. If the sellers changed their mind and didn't sign then you don't have a contract.