If you were a multi-billionare??

[Ninja]

I'd do stuff for charity you bunch of selfish cnuts!!

I'd also give a bit to charity, but the cars would be an important factor in my money spending   

[Waspy]

I'd do stuff for charity you bunch of selfish cnuts!!

I'd also give a bit to charity, but the cars would be an important factor in my money spending   

I would give African Kids Mk3s... Not sure if that is charitable or not...   

[Ninja]

I'd do stuff for charity you bunch of selfish cnuts!!

I'd also give a bit to charity, but the cars would be an important factor in my money spending   

I would give African Kids Mk3s... Not sure if that is charitable or not...   

Yeah that's charitable - giving them MK4s wouldn't be

[Len]

I wouldnt drive!

A blacked out van would do for me with much protection as possible.
Couple of ex SAS guys in case somebody wanted to kidnap me for ransome.

[RedGTD]

A Classic Mk1 Mini with a Hayabusa engine in the back but as close to standard looking on the outside.
A Mk1 Ford Escort Mexico
A Metro R64
A Formula 1 car, just for the hell of it 
An Aerial Atom

I'd also buy one of every car I've owned and have fun tarting them up a little.
My everyday runner would be an Audi RS6.
I'd have a Rolls Royce just for the luxury.

like others have said, the list is endless!
I think we'd all have fully climate controlled warehouses full of cars.