For quite a few years I have been kicking the idea of building either a Factory 5 Cobra or their mid engined V-8 monster Super Car. Price kinda limits me to the Cobra. Though I am keeping my eyes open for a thrashed Z-O6 for the supercar.
After extensive research there is very little doubt in my mind that the "Factory 5" is the best kit out there though Superformance builds a heck of a car themselves.