A quick word on weights. At Tare, the Rock weighs
2673kg, while its ATM is 3300kg (though it can be
upgraded to 3500kg). On the face of it, that’s a
payload capacity of 627kg. However, the GTM is
2970kg. The upshot: when loaded to 3300kg, at
least 10 per cent of that weight (330kg) has to be
supported by the tow vehicle. While striving for
a 10 per cent ball weight is, for Australian-built
caravans, a rule of thumb, it would be something
to be mindful of when loading.
When it comes to self-sufficiency, the Rock has
genuine promise. Two 120Ah deep-cycle batteries
are fitted as standard, along with 300W of solar
on the roof. A BMPRO Trek digital display inside
the van provides the van’s levels, from battery
voltage to water – the Rock has a combined
250L worth of fresh water storage capacity (very
good), and even a 125L grey water tank.
16 \
INSIDE THE ROCK
Our review Rock looked as though it had already
done some genuine miles, including the RV show
circuit, by the look of some of the trims inside the
cabinets that hide 12V wires.
Also, inside one of the overhead lockers I spotted
two exposed nuts that I guessed were paired to
the bolts securing one of the external LED light
bars. They were a little unsightly.
Our 20ft Rock – officially known as the CV6436
BB2 – came with an L-shaped dinette lounge,
though a cafe-style dinette is available, too.
The kitchen features the expected items, from
sink to cooktop (and griller and optional oven),
as well as a microwave that’s recessed into the
overhead cabinetry. The fridge is a 190L two-
door compressor unit.