Jaguar reportedly is targeting 400 pounds of weight loss but that seems very optimistic. If they could pull even a couple hundred pounds out of the car that would be incredible. Especially considering that the supercharged 5.0 liter V8 is expected to get a power bump into the 600 horsepower range.
A bit of weight savings will no doubt come from the carbon ceramic brakes but where else Jaguar will cut weight is anyone's guess. It is interesting to note that this is the convertible F-Type which means the RS trim will likely be available for both the coupe and convertible.
It is nice to see Jaguar taking performance so seriously. They did not put a roll cage in a convertible test car just for fun.