i suppose they just love their 406 coupe.
it had originally been a 2.0 16v, then they added a supercharger,
then replaced it with a 2.0 8v turbo and finally went for a 405 T16
engine and drivetrain conversion... but as i said, as far as i know,
it hasn't been finished (yet).
btw, 406 coupe used to be one of my dream cars... until i actually
drove one - got dissapointed (eventhough it was a V6 with leather
and stuff) and figured out how much better and more of a driver's
car my 405 T16 was (and still is

).
the only really good point about it were the 4-pot Brembo brakes,
but i've got those on my T16

.