At Leguna Seca I had a Genesis driver tell me about how he wanted to see how our two cars compared. He was an advanced driver and was a Leguna regular. While wearing his fire suit, he went on and on about how he was going to start following my 370 and then he'd pass me up and we'd chat more later.
I never saw him after turn three, and admittedly he only made 4 laps before some issue side lined him, like a lack of an oil cooler.