I'll try again to help...
SEVS - specialist vehicle entry scheme.
Specialist & Enthusiast Vehicle Scheme (SEVS)
Any car can be imported into the country as long as you have government approval.
FWIW:
The pre/post 89 rule exists to protect the industry... so as not to "compete" with current car manufacturers, models, and sales undercutting the industry and costing the country jobs.
IE. Bringing in skylines, Silvia, WRXes etc...