It's o.k. that you already know what you want. The latest Ferrari model, of course. The red one you saw at thecarofyourfantasies.com. But maybe you should reconsider it. By the way, did you know that red cars and sports type cars are stopped more often?

Purchasing a new car is a complicated financial operation and a highlight of your life. Take it seriously.

First, have a look at your family budget. Sit down and check all your household expenses, as well as cash on hand and your take-home pay and determine what you can reasonably afford to pay for a new car. According to the experts you shouldn't spend on your car more than 20 percent of your monthly income.

Afterwards check your credit. Start this process months before you plan to purchase, if possible, because if you have incorrect or outdated information that's lowering your score - and therefore raising the interest rate you'll have to pay - it can removed, but it takes at least 60 to 90 days.

To calculate monthly payments, you should factor in proposed purchase price, the down payment, interest rate and term of your loan. All will affect how much you can afford to spend on your car.

Don't worry if you can't get a standard loan, there are alternatives. If the banks, building societies and credit unions won't lend to you because you're self employed, newly arrived in the country or have a poor credit history, consider the booming non-conforming and "low doc" loan market.

A number of non-bank lenders offer loans which especially cater for this type of borrower. The interest rates on non-conforming loans are generally higher but come down after a few years of on-time repayments.

Think about all the expenses of a car: Insurance rates, fuel costs, maintenance, repair and not only the purchase price. Some luxury cars and not American-made cars cost more to repair.

Decide if you want to buy a new car or a used one. Both have pros and cons. A used car costs significantly cheaper but there is no comprehensive new-car warranty, not as many safety and convenience features but a questionable maintenance.

As for the timing, the two best times of the year to buy a car are the end of December (when dealers are competing for Christmas shoppers) and between July and October (when dealers are making room for new models).

You should also consider what's the primary use of the car, who'll drive, where will you use the car and so on.