The image, although not revealing much, shows the BMW M4 CS rival features a large fixed rear wing that appears to be made out of carbon fibre. Recent spyshots, which show the Track Edition testing at the Nurburgring, also reveal alterations to the standard RC F's front and rear bumper designs.
Little is known about the extent of the Track Edition's upgrades, but the 2016 RC F GT concept showcased an extensive weight saving programme. It's unlikely that Lexus will be able to shave off the same 360kg for production, but expect a significant kerbweight reduction nonetheless.
We should also see upgrades to the chassis and suspension to give the RC F more of a bias towards handling over road comfort. Whether or not more power will be squeezed from the 470bhp naturally-aspirated 5.0-litre V8 engine remains to be seen. We can expect more details prior to the car's Detroit reveal in January.