Neil, enclosing the Roadster with a front spoiler seemed to make it run cooler on hot days, I think because more air gets channeled through the radiator. It's not a problem with the four cylinders, the temperature seems on the low side anyway.
I've done a bit more on the cowl Roger. It's now cut and filed and primed and resting on the bench.
............but the front curvature isn't as uniform as I would like. It will be concealed though behind the number plate box so for now I'll stick with this one, but its so tempting to start another! You did well to get such an even curve.