The Bearcat Armored Truck Series followed Lenco's successful Bear Armored Truck Series, which was used by many American Law Enforcement agencies. The name Bearcat is actually an acronym for Ballistic Engineered Armored Response Counter-Attack Truck. The smaller Bearcat was designed to perform duties the larger Bear vehicles were not able to accomplish.  Based on a upgraded Ford F550 Super-Duty truck chassis, the first variant, the Bearcat G2, was so successful it resulted in a modified Military variant and spawned a number of upgraded platforms, versions and variants.  Advertised duties that the Bearcat family can perform are Ambulance/Medical Evacuation, Anti-Riot Protection, Armored Personnel Carrier, Assault/Counter-Assault, Border Security, Convoy Protection, Emergency Response/Rescue, Explosive Ordnance Disposal, Fire Extinguishment, Gun Truck, Patrol, Perimeter Security, Reconnaissance, Route Clearance and VIP Transport. Bearcats are marketed to the following communities: "Military & International", "Police & Government" and "Fire & EMS".

Basic Bearcat Military & International platforms consist of the G2, G3, G4, G5 and X3. Some basic facts and identifying features of those platforms are as follows:

G2 - VERY similar to G3, but designed for urban/road operations; Seats 10-12; Differs from G3 by being fitted with dual rear wheels.
G3 - VERY similar to G2, but designed for off-road operations; Differs from G2 by being fitted with Off-Road Tires and single rear wheels.
G4- Designed for vigorous off-road operations; Uparmored when compared to G2 & G3 variants; Seats 8-10; Differs from other variants by having larger windows on rear sides.  Used to be referred to as G4 MATV.

G5 - Marketed by Lenco as the Bearcat variant closest to a commercially available MRAP; Offers military-level blast protection; Seats 8; Differs from other variants by being fitted by externally mounted storage lockers.

X3- 4-door utility variant with modular rear storage area. Depending on configuration, can seat 4-5 occupants.

The Military/International variants listed are Anti-Riot, Border Security, Engineer(& EOD), Firecat, MedEvac and Tactical SUV.