My Superformance ended up being titled and insured as a "2005 Custom". This was the year I went through the DMV process to title and register my Superformance MKIII (I drove it on dealer plates for awhile). The car was actually manufactured in 2000 as stated on the MSO, and I purchased it in 2001, but NY gives it the year that it is actually titled in NYS.
The "Custom" designation makes your car exempt from emissions testing for your annual state inspection. And it helps to have a friend at the repair shop where you get your inspections done, because starting the second year of annual inspections, they will probably have to call their DMV provider to get help to enter the proper codes to allow the machine to inspect your car.
Once again, not "user friendly" - and a little patience goes a long way!!!
I had to sell my Superformance last year, but gained a lot of knowledge over the almost 15 years of owning and driving my Cobra. Maybe some day...
Enjoy your Cobra, and stay safe
Jim