I've seen that some mods that I download adds some new objects into default cities.
Is there any tutorials and programs with which I will be able to do that?

I tried searching google, but didn't find anything useful.
Is there any program which I can use to lock my cars, from opening using zip.
I guess every team has mush the same program, but different encrypting keys.
Thanks.

Thanks very much, very understandable. And the last question, how to pack modified vehcarsim back into mm2core.ar, or it's not necessary to do?

I'm not sure, whether or not these topic has ever been created, but i searched hard and still didn't find anything helpful. So, the question is how to tune default cars (exactly, where to find theme, in which archieve), and will they work in multiplayer or it still will say that i'm a cheater. I hop...

And, sorry for the offtopic, but which values affect the car handling and speed, and are the most important? Here is what I found, correct me, if I'm wrong. Horsepower: acceleration of the car and the power, sure. Rarely goes over 10000. RPM parameters: affects transmission of the car. Cornering rad...

Thanks! I faced another problem. I tried to open vehicle, .ar archieve, but in both windows and mac it says that file is corrupted. Is there any special software to work with this type of archieves? After some research i found that this error occures only on car models, and from riva and hqtm. I sti...

I downloaded Ultimate Tweaker, modded few cars and noticed following. 1. If i tune two different cars with the same parameters, they still handle differently. So, the question is, how to tune handling, and can i make horsepower over 10000 and rpm over 20000. Using maximum values allowed, my car stil...