What is it?
A Range Rover 5.0-litre Supercharged Autobiography re-thought by Kahn Designs and tuned by Cosworth. The end result is a sharper, more individual Range Rover with performance that puts it in the supercar league.
Is it any good?
The edgier, more assertive looks won't appeal to all but there's no denying the quality and attention to detail of Kahn Design's visual makeover. The deeper front bumper with daytime running light recesses and dark grilles toughen up the Range Rover's nose, while the side skirts and 22-inch RS Kahn wheels lower its stance significantly. Around the back deeper rear bumpers with quad Cosworth-branded exhausts suggest that the changes are more than just visual.
They are, too. Cosworth worked on the 5.0-litre V8's supercharger and control unit to boost power from 500bhp to 555bhp. It's not the power hike that really counts though, rather the boost in torque, with the 600 in the Kahn Range Rover's name referring to the 600lb.ft of twisting force it produces. That mighty amount is what makes the 4.5-second 0-60mph time sound credible, even if it doesn't feel quite as bombastically fast as that on the road.
Everything else is standard Range Rover, which means it feels like you're driving a very comfortable detached house, its size being its biggest limiting factor on the road. Find a clear, wide stretch of blacktop, though, and the RS600 flies - much like the fuel needle towards to the red paint.
Should I call the bank manager?
You'll need to, as this is a genuine £100,000 Range Rover. That's actually not bad value though when you consider Kahn's and Cosworth's input to the design and drivetrain of the RS600 - it only costs about £15,000 more than a standard Autobiography.
The Kahn Range Rover RS600 will either appeal to you or not, though regardless of where you stand there's no denying the quality of the finished product. That's not surprising given the price, but if you're after a Range Rover with more individuality and performance than the norm, the RS600 fits the brief perfectly.