LAS VEGAS (AP) — NASCAR on Saturday displayed a clearly altered glove that Joey Logano wore in qualifying at Atlanta Motor Speedway, where aerodynamic-deflecting alterations were so obvious it looked as if he was wearing part of an amphibious costume.

The black glove for Logano's left hand had webbing made of an unspecified material in between every finger. The theory is that Logano, who qualified second at Atlanta last weekend, had the glove altered in order to place his hand out his window as an aerodynamic blocker during qualifying.

At Las Vegas Motor Speedway on Saturday, NASCAR would not speculate on the motivation of the two-time Cup champion or Team Penske, which did not appeal a penalty imposed on Logano. NASCAR said it discovered the glove during a random inspection — and not, as Denny Hamlin suggested, in a tipoff from a rival team — and that it did not know if Logano was wearing the glove when he won the pole for the season-opening Daytona 500.