The gearbox is the eight-speed auto from the upcoming F-Type, which will include ‘Quickshift’ functionality allowing faster gear changes through ‘rapid and precisely timed engine torque intervention’. It'll also give an automatic throttle blip on downshifts, and it can recognise when you're mid-bend and hold the gear until you’re out.
Other suspension changes include revised knuckles based on those seen in the XKR-S and a new rear subframe. These are combined with a steering system that uses the valving developed for the F-Type.
One reason BMW might not be quaking just yet is the price. The XFR-S will cost £79,995 when it goes on sale May next year. That's seven grand more than the M5.
Now that full shots of the car have been leaked in advance of the car's official reveal at the Los Angeles motor show this evening, we know it.
Arguably, the biggest talking point will be the sizeable rear spoiler that'd look more at home on a mid-'90s Subaru than a supercharged Jaguar. The de-rigeur rear diffuser and quad-exit exhausts complete the back end.
Up front, things are marginally less shouty, but there's still a deep front bumper which incorporates three large, meshed air dams, in addition to the standard XFR's twin bonnet vents.
There'll be heavy use of carbon fibre throughout, too, replacing most of the standard car's chrome trim. Six-spoke alloy wheels with polished faces will complete the picture.