Anyone can drive any of the supplied cars, though everyone wants to drive the vipers last time there was a shortage of SRT vipers which meant lots of queing and only a few laps, which was compounded when a couple broke down.
The session i was on wasnt brilliant x2 laps of the bowl and x3 laps on the autocross, we found later that was better than everyone else on the following day ! so I would take your viper unless you like queing in the midday sun
some of our members wasnt to HP, they stood around for 2 hours melting in the sun on the last day for runs around the bowl and didnt even get a drive....hope Dodge have learnt from this and will at least provide some shade and extra vehicles