The all-welded steel armoured hull provides the occupants with protection from 7.62 mm small arms fire and shell splinters.

The Bronco is powered by a Caterpillar model 3126B four-stroke turbocharged and charge air-cooled diesel engine developing 350 bhp at 2,400 rpm coupled to an Allison MD3560P fully automatic transmission.

The Bronco's four-sprocket drive, fully articulated steering with optional differential lock provides for small turning radius manoeuvres and improved performance.

An advantage the standard Bronco has over other western armoured personnel carriers is its relatively large interior, with seating for 16 including the driver, dependent on percentile measurements.

Once delivered to the UK, contractor Thales fitted the vehicles according to MoD specifications with Bowman communications systems, specialist electronic counter-measure equipment and extra protective armour including bar armour and protected seats for occupants at their facility in the former MoD depot at Llangennech near Llanelli, South Wales.

Both modules have been redesigned and now feature blast deflecting V-shaped hulls suspended from a redesigned and stiffened chassis by four rubber isolators; additional benefits of this isolator interface include the ability to swap the rear module in less than 30 minutes, and a reduction (when compared to Bronco 2) in noise, vibration, and harshness levels of 50%.

The Bronco 3 is fitted with a new Mercedes-MTU TD106 325 hp engine providing higher torque, delivering improved off-road performance and reduced fuel consumption.

In December 2008, ST Kinetics was awarded a £150 million single source contract by the British Ministry of Defence for over 100 Bronco All Terrain Tracked Carriers for use in Afghanistan under an Urgent Operational Requirement (UOR).

While Janes had reported that British Warthogs were planned to have been transformed to serve as transporter vehicles for the Thales Watchkeeper UAV manned by 32nd Regiment Royal Artillery and 47th Regiment Royal Artillery under the Army 2020 concept,[18] a subsequent March 2016 report stated that the British Army had phased out the Warthog in October 2015, as it was specifically for use in Afghanistan operations.