370z vs S5

Cunnos

My buddy wants to bring me to his track and give it a go between his 2010 S5 and my 370z. He got his S5 a few weeks ago and has been bragging to all of our friends about "how great of a car it is" and such and such. So now he has stepped up the trash talk and pretty much bad mouthed my car saying it stands no chance against his car, straight line or a few laps around the track. Normally, I wouldn't care about any of this stuff, but since he is a total D bag and I'm pretty sure his dad bought his car for him, I am considering accepting the challenge and meeting him at this track. So I wanted to find out from anyone here whether or not I stand a shot or perhaps someone has been in a similar situation at a track against an S5? I'm running nothing but my stock 40th anniversary and he has a stock S5. I checked online and the S5 is pushing 354hp however its a bit heavy at like 3850 pounds. So hopefully i have a chance........i really hate this kid so I appreciate any advice. Thanks