I've owned both as you know, the Evo is just so capable it's almost too good if that makes sense?? Whereas the Cosworth especially the 2WD Sapp is an event to drive if you get my jist? Best driving Cosworth for me the 2WD Taxi.
I'd have another 2WD Sapph for sure, BUT I'd keep the Tommi too because let's be honest, they're a bit special too
If you have that itch then go and scratch it buddy is my advice, don't be blinkered and life's too short