One of my clients sold his F50 for just that reason and I am convinced that is one reason so few get driven much.
The car has great driving manners but is very loud inside. I have known a number of people who wear headsets with voice communication so they can be comfortable and communicate without yelling at each other.
I love the way they drive but even if I could afford it, the interior noise level would prevent me from having one.
I already have hearing loss from cars. I don't need any more.
Noise Level is up to the individual listener like sensing pop music as "loud" by people. Also individual people will rate certain frequenies as noiseful whereas others do not. Thats the reason why hearing aids needs to be well choosen and adjusted to that individuality. Anyway, I would rate my noise sensitivity as rather high, saying I hate to much noise. I respect that scepticism of some people here.
The F50 is a louder car when: a) the hard top is on and maybe when b) a non original exhaust is on the car and c) if the noise dampening carbon tub overlaying alcantara in the back and under the seats is not present (earlier models).
Generally, I never wear earplugs in the F50 and as said, I'm noise sensitive.
My F50 had a non original exhaust on, no noise dampening alcantara (just the naked and beautiful Tub exposed) and the hard top on when I started to test it before buying. The noise level when driving was almost like in Boxers Jaguar, veery loud.
After, with the alcantara AND original exhaust AND still hard top, the noise level was acceptable for short/medium distances but of course louder than in any F-car I had before,
But with the hard top away, the F50 is not louder than a Scud or any other Ferrari and veeeeery pleasant to enjoy, except that the tub vibrations are felt in the back, which I like very much as this is part of the, well "special" feeling. It is ONE aspect of what makes that car so special when driving it. But be assured, the car is not especially loud if Points a+b+c are present in the appropriate way.
Other way said, I would use the F50 easy on a 3'k fled, noise wouldn't be a issue. The really only problem is luggage space for 2 persons 5 days.
Have driven my F50 now about 4'k since owning it and love, really love to drive it. Just my 0.02