A couple of years ago, when the Spyker blew up coming into Indianapolis, we took advantage of the mayhem at Arnage to head through the woods to
have ourselves a look. We were amazed to find ourselves stood trackside with no-one challenging us at all for several minutes. When we were asked to leave the area we stood behind the armco and watched as the driver took out a tiny bundle of very basic tools and, taking instructions over his mobile, made a futile attempt to repair the car.
So, yes, the cars carry toolkits.