[360c]

But isn't Ferrari's history based on, and indeed aren't the most valuable Ferrari's of all time, front engined V12s ?

Yep.

The mid-engined road 12cyl Ferraris were dinosaurs and nowhere near as user friendly as the later front enginded cars. These things are GT cars rather than outright Sports racers so the front engined layout is a better choice for the design purpose.

As a bit of a side note when Enzo Ferrari bulit his first mid-engined racing GT the 250LM, he initially wouldn't sell them to privateer racers because he deemed them to be too dangerous for anybody but professional drivers. A bit later down the track (1973) they introduced mid engined V12's with the 365 Berlinetta Boxer, and they and all of their successors were tricky when pushed to the limit.