Red Hammer Crates. But their no longer available
Just keep on fighting and doin jobs and you'll finally get it. There's no special place where you can get it. However, the rate of loot drop depends on what location you're from. If in US or Canada,...
car life is an item needed to build chop shop. these items will drop from jobs. also it's in free gift section, so your friends can send to you. :)
To get a car bomb on Mafia Wars you have to buy it using reward points.
You can get it doing Invade Tong-controlled Neighborhood job in New York as a Hitman