The ads look fairly genuine... Most odd.

In the UK some naughty garages advertise other sellers cars -
on the basis that if anyone gets interested they approach the
original seller and try to negotiate a commission or somesuch.
You notice this with very limited cars such as mine
(if anyone is thinking that there were plenty of 308s, remember that
mine is a right-hand drive QV,  one of about 200) where only
very few are available at any time - you call a garage that is offering
one for sale to get a more comprehensive description, only to find it
matches one you were given by another garage day before.

It gets interesting if you ask when you can see the car.

Paul