how many F40 are left appose to how many were made ?
when your done with the 458 garage it for about 25 years see if its worth a killing then, i know there is a lot of them but..
Absolutely no idea, my guess is maybe there could be around 100 in the UK, maybe more but the majority are probably garage queens as they tend to command around a million and as high as 1.5M:
https://www.pistonheads.com/classifieds/used-cars/ferrari/f40/ferrari-f40/9964182
10-15 cars for sale in UK at moment.
In comparison there is around 500x 458 Coupes on the road in the UK and around 50 for sale and low mileage later cars advertised as high as 200k. At the other end of spectrum there are high milers, cars with bad/poor history or LHD/Low spec as low as 100k also, but these cars simply never seem to sell. People don't buy budget cheap Ferrari's it seems.
F430 manuals will be a car that goes crazy regards to value, as its as rare or rarer than F430 Scuderia and a lot of investor car types believe 458 Speciale will appreciate and high spec good examples are 458 a little too as they are the last of the NA V8 generation and last to be designed by Pininfarina, but only time will tell, but F40's and F430 manuals will keep rising for sure as the numbers were so low and they are now at that age if you have a totally original clean, low owner, low mileage car it can command a huge premium.
Plus Ferrari and specialist are always trying to buy the good examples, its a lucrative business for them.