JLR's high-performance Defender OCTA will be unveiled on July 3.Defender OCTA confirmed for Australia, but in limited numbers initially.Expected to feature a twin-turbo V8 engine, advanced air suspension system, knobbly off-road tyres, and large Brembo brakes.Defender OCTA likely to have a higher price compared to the Defender 110 P525 V8 and will compete with the Mercedes-AMG G 63.