Stephanie Seymour DUI: Dressed to the Nines ... Begging for Mercy

Stephanie Seymour could get out of her DUI case ... if she hits the books.

The supermodel showed up in a Connecticut court in her finest Jackie O-inspired outfit -- complete with long leather gloves -- and asked the judge to cut her a break.

Seymour told the court she's applied to an alcohol counseling program.

TMZ broke the story, Steph got busted last month after cops say she backed into another car on a highway off-ramp.