I know the price estimates of the C8 vary greatly (with emotions running high on the two sides of that disagreement), with some insisting it is going to start at $100K (US), while I conversely believe that we will hear Harlan or Tadge say at the reveal, “if you can afford a Grand Sport, you can afford a ME.”
I based that conclusion on folks smarter than I, who collectively have averaged approximately the same conclusion; e.g. Automobile saying they estimate $57K as a start price (though I think that is too low); Don Sherman of Car and Driver saying less than $10K more than the C7, and Bob Lutz saying about $5K than a C7 (all prices US).
Guessing that at the time of the reveal we will hear some generality as above, but not be then given a specific amount, nor will we be given pricing for most options — with specifics for both not until just before we order.