S2000 seems and feel a nicer car imo.
I own a s2000 and drove the 86.
the backseats of the 86 are useless, might as well consider that as a 2 seater. the interior feel cheap in the 86, however I drove the base model 86.
s2000 is just more exciting to drive. 86 is just a nice smooth car, revv smoothly, just slow.