I have been through the full cycle.
Drive to the track on the track tyres. Easy button, maybe not so good if you have to drive hundreds of kms each way, heat cycles may be more of a problem with some tyres more than others. Reasonable space for tools etc, passenger.
Frame sitting on passenger seat, IIRC that enabled three to sit in the passenger area, one in the boot. Bugger all room for jack, tools, etc.
Boot rack, this freed up a bit of space for tools etc, but removing rack was a pain (not difficult, just time consuming to R&R).
Small trailer, towed behind racecar. Lots of room for tyres, tools and even a passenger! Easy to R&R tongue (two bolts).
Car trailer. Expensive, need tow car. Space not an issue. Only option if car a non-runner during the day (this got me home three times, 2x SMP, 1x PI). Necessary if racecar not registered.
Personally, I would go with one of the last two, probably the small trailer is the most cost effective if you are not driving the wheels off it and therefore willing to risk having to make arrangements to get the car home if you shunt or have engine failure.