Went out and tested my cornering theory...
"Yellow signs for suggested speed limit on curves"
I double it and then subtract 10mph from the total. Gives me a fun, safe driving experience without throwing everything in the car around.
Little bit more edge, barely holding on with the tires screaming every corner = only subtract 5mph.
Don't have the nerve to push it to the 2x mark, I really don't think the sedan can take that. I need sport seats for that too.