Has "The Apprentice" been putting ideas in your head Freddie?!
Anyway, can't say I blame you. In my twenties I was a member of the "Classic Car Club", the original of these types of clubs that was quite ground-breaking at the time. It was an excellent fit for the consulting lifestyle - no hassle around owning a car or getting it fixed or ensuring the insurance got renewed whilst away on an assignment. And got to drive Aston Martins, Ferraris, etc. for about as many weekends of the year as I needed them. Can highly recommend it.
With the supercar clubs that exist now, the only thing I'd take a careful look at is the excess on the insurance policy. If it's an amount that is unpalatable, that could seriously diminish your enjoyment of having use of the cars....