Range Rover Sport SVR proto 1

The in-development, hotted-up version of the Range Rover Sport has an official designation, and it's not the RS as previously believed – the fastest and most powerful RRS will wear a SVR suffix, the first to do so.

A prototype will be making its public debut – still in camouflage – at the Goodwood Festival of Speed over the weekend. It's the first appearance of the new high-performance SVR-badged Land Rover and Jaguar models to be created by Jaguar Land Rover's Special Vehicle Operations skunkworks outfit.

No details yet about the Range Rover Sport SVR, which is set to go on sale in 2015, save that it'll have a 550 PS output, which is what the tweaked 5.0 litre supercharged V8 that also resides in the Jaguar F-Type R, XKR-S and XFR-S puts out. With 680 Nm of twist on call, that's 40 PS and 55 Nm more than the regular Range Rover Sport Supercharged.

Presumably paired with the "Quickshift" eight-speed automatic transmission, performance figures being bandied about by various sources for the SVR include a 0-100 km/h time of about 4.5 seconds and a top speed of about 265 km/h. As the video of it doing Nurburgring shows, it's pretty rapid. Sounds good too.