The Defender Octa is an SUV fit for evo Car of the Year, and the Prodrive-developed D7X-R takes it to a new level. Sam Jenkins takes a closer look during its Dakar debut. #dakar
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0:00
The Dakar Rally is underway for 2026 and we're here to see the action
0:08
The Defender hot kit is one of the only SUVs to make it into Evo car of the year
0:13
And now there's a race car. The stock category of the Dakar Rally has become a bit stale in recent years
0:21
with Toyota the only real competitor. But Defender hopes to change that with the D7XR
0:25
It's for this reason that Defender worked together with the ASO and FIA to rewrite the rules of the stock category alongside Toyota
0:31
Being in the stock category, this is a car that needs to closely resemble a car that sold for the road
0:36
and so this is based on the Otka. Its engine is the same BMW-derived 4.4-litre twin-turper-charged V8
0:42
with its hardware untouched for this application. The engine bay looks identical to a standard road car
0:47
even down to the airbox that uses the same production-spec paper filter. One significant change is power output
0:53
as it's knocked down from the 626 of the road car to 390 brake horsepower
0:58
to comply with the regulations. This car also features a side exit exhaust system that happens to be free of pesky catalytic converters and as we experienced for ourselves on the start line that makes for a rather great sound
1:14
This change isn't just for this purpose though, as it also helps minimise the risk of damage
1:18
to a standard rear exit exhaust that can result in an increase in back pressure and subsequent
1:22
reduction in engine output. There are some unusual modifications made to the Defender
1:26
to bring it up to Dakar's spec, including the use of smaller brakes than the road car
1:30
There's good reason for this though, as the largest sides that are fit behind the D7X are smaller 17-inch wheels, chosen to allow for the fitment of huge 35-inch tyres
1:39
Even its transmission and transfer case are the same as in the road car, but a new control unit allows for the use of a hydraulic handbrake and nifty features like flight mode, preventing damage to the drivetrain in the event of a hard impact
1:49
The Octa's e-DISO also swap for fully mechanical units, and a short to final drive brings top speed down to 105 mph, as per the regulations
1:58
The Trix 6D dynamic chassis tech of the Octa is swapped for more conventional shock absorbers from Belstein
2:03
To go with the huge weight of its 500 litre fuel tank, it employs a twin-damper system for redundancy and performance
2:09
After all, this is a car that weighs near enough three tonnes fully fuelled
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