I heard that it will affect a lot on my credit history if I tell a bank where I got a lone that I will surrender my card and ask them to take it.
But how serisouly does it affect?

It is exactly as bad for you as if you stopped paying and they came and took it away. It's really bad. Do it only when you have no other option.

How far behind are you? Lenders are often willing to work with you if you talk to them and explain what's making you late with your payments. They don't really want the vehicle back, except as a last resort...they want the payments. See if you can get them to give you an extension...they will put your past due payments on the back end of the payment schedule and bring your account current. They may also waive the interest for those missed payments, too. You'll probably have to pay any accumulated late fees, but those are nothing compared to the amount of the past due payments. It worked for me...all it took was one toll-free phone call.

Thank you for the advice. I haven't missed any payment yet.

But since I borrowed pretty large amount of money. And now I guess I will not be able to afford it in the future. I tried to sell it (at carmax where offers a fair price, regular car dealers gave me even lower prices) but I have to pay the difference between the car value and my loan amount (principal loan amount is more than the estimated car value). My credit score is bad also, so I believe that there is no such a place I can get a personal loan to pay the difference and get rid of the car.

Keep in mind that if the car goes back to the bank, the bank auctions the car and gets a fat judgement against you for the difference between the auction price and the loan balance.

its not an automatic judgement .. they have to sue and get a judgement first.

Essentially the only difference between an involuntary and a voluntary reposessions, is that with a voluntary reposession both parties have a signed agreement. Neither one is any better than the other from a future creditors standpoint.

exactly.. i laugh when i see posts that say that a voluntary repo is better. neither one of them are good and there is no degree of bad. its all bad.