Tips: 
Would you like to know what some of those other "special" items do for your car?

Curb Feelers: Add 10 percent to your armor
Mud Flaps: Add 10 percent to chassis reinforcement
Heated Seats: Add 10 percent to total ammo
Cup Holders: Enemy is 10 percent more likely to miss

If you shut your engine off you will not appear on radar and  your enemies turreted weapons and missiles will be ineffective.

Look out for hacked cars.  They will usually have really big tires.  These people certainly take the fun away from the game, since they just sit there and kill you.

If you decide to race go for a small fast car with little to no armor.
 
                  
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