If you don't have one already, then the answer is, you can't. It was a special drop on Labor Day 2009 (one of the items available randomly from doing jobs and fights) and subsequently available from the Hard Labor Crates (a chance of getting any of the eight labor day items by spending reward points). It's possible, but unlikely, that it will available in similar ways in the future, such as a reward points sale item or a drop in Labor Day 2010, but it is not currently available.
To get a car bomb on Mafia Wars you have to buy it using reward points.
the town car is located in the mafia store under the vehicle category.
But their no longer available
you can get it by doing black mail a car dealer job.
do the job Storm The Presidential Palace
El Padrino Job Tier in Cuba
Used to build Thai XS Max
You can find one when you open a Gold Chest
You have to talk to the dude on the corner of the garage place for the kit.
If it is in the new Las Vegas city ,try the job "Blackmail a car dealer".
If it is in the new Las Vegas city ,try the job "Blackmail a car dealer".
Cuba (El Padrino) - Storm the presidential place