Land Rover has announced its Range Rover Sport SVR will make its global debut at Pebble Beach, California on August 14.Land Rover South Africa says the SVR will arrive here during the second quarter of 2015.The automaker says its SVR is the "fastest, most powerful Land Rover" yet and is the first model to wear the 'SVR' designation being adopted by future Land Rover and Jaguar high-performance models. 405kW/680NmThe automaker says its Range Rover Sport SVR is powered by an uprated version of Land Rover’s five-litre supercharged V8, tuned to deliver 405kW – a 30kW increase over the existing V8 and 680Nm. The automaker said: "Its advanced ZF 8HP70 8-speed automatic transmission and four-wheel-drive chassis have been optimised to complement its astonishing performance, whatever the weather."IMAGE GALLERY: 2015 Range Rover Sport SVRVIDEO: Range Rover Sport SVR at the NurburgringThe Range Rover Sport SVR accelerates to 100km/h in just 4.5 seconds, has a top speed of 260km/h (electronically limited) and a Nurburgring Nordschleife lap time of 8min14 – one of the fastest times ever recorded by a production SUV.The automaker said said: "In a world first for Land Rover, the RR Sport SVR is equipped with a two-stage active exhaust featuring electronically controlled valves. The system optimises sound quality, performance and aesthetics and provides a racecar-inspired soundtrack at higher engine revs without adversely affecting refinement during steady-state driving."There are also unique 22" alloys with performance-optimised 295/40 R22 Continental SportContact 5 tyres. As standard, new 21" wheels with 275/45 R21 are available.The Range Rover Sport SVR will arrive in Land Rover showrooms in 2015.