Working with the narrow body, I grafted on the turbo wing from another damaged body I had on hand.
Although not 100% correct this will allow a reasonable facsimile of the C4 Lightweight to be built. A very rare car of which only 22 examples were built.
Or by using the high wing I could build a N-GT version.
I'm going the Lightweight route as I will be using the high wing on the Turbo.