1. M20 Armed Utility Car

        a. Has a 50 caliber m2 heavy machine gun, including a bazooka. 

2. M8 Tow Tank Destroyer

        a. Has a 50 caliber machine gun.

3. T69 Multiple Gun Motor Carriage

    a. Has a 4.50 caliber machine gun.

4. Dimensions Of A Armed Vehicle

    a. Weighs 7.8 tons

    b. Length is 5 meters

    c. Width is 2.54 meters.

    d. Height is 2.54 meters.    

    e. Can hold up to 5 people (M8 Greyhound). 

               http://sunsite.berkeley.edu/FindingAids/dynaweb/calher/jvac/figures/j12EH-86A.jpg