This is essentially the same car I just picked up...on the rear I want to reduce some drag.
Would it be better to extend the roofline at a slight angle downwards instead of the factor spoiler which you can see tapers slightly upwards?
Or would it be better to add a second wing on the rear 'notchback'?
I'm not looking to do anything super dramatic as a full boattail but I think I could make some substantial gains with very little effort on the rear.
Thoughts?