While on topic, I came across this site the other day:
https://racecarsdirect.com/
Where you can buy real race cars for (IMO) relatively reasonable money.
Now the question, how complicated is to maintain one of these cars? how much do they differ from regular cars in a sense of what needs to be done to keep it in running condition?
I mean, I know they are pushed to the limit and hence require frequent service and stuff replaced... but other than that... what am I missing?