Yeah my sportcar would definitely backfire. Ground shaking backfire capability is one of the perks of that car. And any higher pitched squeak from their scamming mouths would also be drowned out by the PSSSHHHH of my blow off valve.
I... hate... scammers. Since my sportcar is down until further notice, (and since I still haven't been able to save up for a *daily* car) I haven't been to that gas station in a while, aside from recently on my motorcycle. Hadn't seen those idiots around during that time though, thankfully.