In all respects, the Zombie is not for the feint hearted.

The high power, brushless, inrunner motor coupled to a durable 80A, fan-cooled ESC extracting maximum performancse and fun from the included 3S cell 2600mAh Li-Po battery. Enough to give many .21 nitro engine a run for their money. The motor is kept cool by a finned, CNC machined mount that you can fit an optional fan to if required.

But power isn't everything. You need to transmit that power into the ground and this is where the Zombie comes into its own. You have 4WD through 3 differentials, metal gears in the differentials and metal drive shafts. The front hub carriers are aluminium for low unsprung weight and durability.Needless tio say, everything is fully ballraced for long life and minimum power loss. Grip is transmitted via large, tough wheels and chunky, all-terrain tyres, with a high-speed 'V' pattern. A tread pattern that works copes with just about any off-road surface but especially loose ones.

The anodised, T6 3mm aluminium chassis has all the screws recessed to limit damage to the heads and the side protection plates for the radio are moulded in tough plastic to resist knocks over and over. The top spine again uses anodised aluminium and creates a really strong structure to resist bending in jumps and rough off-road driving.

Suspension is courtesy of snazzy, anodised, 16mm, oil-filled, metal shocks plus anti-roll bars both front and rear. Camber and toe-in can be adjusted on the front and camber only on the back. Shocks mount on the tough, anodised, aluminium shock towers and have optional mounting positions top and bottom.

Although a handy balance charger is provided there are several recommended upgrade chargers such as the Sigma EQ Mini and Sigma EQ Eco for even faster charging. If you install rechargeable Nimh cells in the transmitter they will do that as well.

A range of heavy-duty upgrade parts are available to really customise your Zombie.

The chassis itself is aluminium as is most of the top chassis. Only around the engine installation do DHK move into their own unique way of chassis bracing.

The durable, .21 class, rear-exhaust, pull-start engine is mounted longitudinally and transmits its power via an SG style crankshaft, aluminium, 3-shoe clutch and metal bell gear into the centre differential using a composite moulded main gear to absorb vibrations and reduce noise. Fuel is stored in the uniquely mounted, fast-fill tank that is designed to avoid the cracking that so many do in an impact.

The ergonomic, 2.4gHz radio system has its receiver in a water-resistant box and connects to a metal geared, ball-raced, 9Kg steering servo and a 3kg throttle/brake servo. A combination of power, precision and reliability that you would expect fromn DHK.

Fully metal, differential gearbox gears, fully metal shocks and shock towers are just part of the advanced specification that sets the Optimus GP apart from the competition.

But then, that's half the fun!! Learning new skills to go faster is why we race cars and the Optimus GP delivers in terms of handling and speed. Add the smell and noise of nitro power and it is easy to see why it is so addictive!

That class-leading .21, pull-start engine is simple to start and set, although the inexperienced would best enlist the help of their shop for that first start up and setting.

DHK have rigoruusly tested the GP cars to ensure that you get performance and reliability from the first run.