Take steps to prepare for your own career. If you are a spouse who has been out of the workforce for a long time, do what you can to ensure your survivability. Secure part-time employment in the interim, with the plan of working full time when you are on your own. If you are the primary wage-earner and believe you will have to pay both alimony and child support, you may want to have more of what you must pay classified as alimony. Alimony payments are tax-deductible to the spouse paying them, and fully taxable to the spouse receiving them.
Child support is taxable to the spouse paying it, and tax-free on the spouse receiving it.
If the divorce leaves you without a car, concentrate on purchasing what you can afford. Do not risk jeopardizing your financial health by purchasing a car you can't afford to pay for and maintain. If the costs of divorce have wiped out your savings, get back into the investment habit as quickly as possible. Work to establish a cash reserve equal to 3-6 months worth of living expenses. Investing in a conservative mutual fund will provide liquidity, and if you don't need it for expenses, will put you well on your way to investing for the future.