Hi Patrick,
As Ron, also I think u are maybe looking for a Ford GT that is a wonderful car too, but here inside we are mostly interested in the older version.
Dont think it will be possible to test drive a gt40 unless u dont have any good friend that already owns one.
In Canada there is a wonderful big comunity about the 40,and u can maybe keep in touch with theme.
I am italian and in Ferrari land is very hard to find a car (but UK is not so far away..u know)
I dunno if u have ever seen the GT40 for real..we are usually talking of "replica" vehicles,but about this special car (as well as ONLY some Cobra) u can see replicas done really better than original cars.
I hope u can see one of those mighty ones for real...and I think u will prefer the older to the new Ford gt (nothing against that dreamcar...just is a new one...and I personally prefer the old shape from 1966..).
Just remember the "typical" gt40 we are talking about weights 1000 kilos and features 350-400 Hp.
....and if u are quick and lucky u can also find real racecars (try look in recent car for sale posts) 980 kilos for 577 Hp....I think really fun and FAST to drive.
Paolo