There is no set formula on what your car accident claim or personal injury case is worth following a car accident. Many years ago, it was common wisdom that you were entitled to three times your medical bills for your pain and suffering. That was a standard of what you would always receive in your personal injury case whether or not you had a personal injury lawyer.
I will advise and I do advise my personal injury clients that that was decades ago. Car insurance is big business. Take a look at Warren Buffett and see that he bought GEICO many years ago. Warren Buffett has made the most money of any person in the American stock market through stocks alone. He is big business and likes to make money. He would not have bought and invested in GEICO if car insurance companies lost money.
In order to settle a Turin personal injury case, a lawyer or a claimant will gather all the proper documentation. This would include medical bills, medical records, lost wage documentation, and a narrative detailing their pain and suffering. From there this would begin negotiations to settle the Turin personal injury case.
Insurance companies collect all this information. In addition, they record the personal injury lawyer's reputation in the document. They look at whether or not he files lawsuits in personal injury cases, whether he settled all his cases, and they compare all of the information to the average in your city and county where either you live or where the person who caused the accident lives. From this, they formulate your settlement range for your personal injury case.
The insurance company will then negotiate with the personal injury lawyer or yourself to try to settle the case for as low in that range as they can. It is your personal injury lawyer's job to settle your case as close to that top-end range. If offered an unfair settlement, then your personal injury lawyer should talk to you about filing an actual lawsuit for your personal injuries against the insurance company.