my neighbor when i was in highschool owned a Chevelle SS in the 70’s- Saw a Chevelle SS sell for $180,000 on mecum’s last night
The corvettes were getting around $50 to $60,000 on the show last night- I think the stingrays were getting a pretty good $$ figure too-
Clearly a case where there was something 'special' about the car. Probably one of a relative few with some particular features or options, or thee was something really unusual about its history. Otherwise, that car wouldn't be worth anywhere near that amount.