I've just sadly parted with My Citroen C5 Diesel 2 litre 90 Bhp ... needed a 7 seater for family expansion etc.
Now have a new (08) Citroen C4 Grand picasso - 7 seater. Very happy with its performance.
The newer engines in the Citroen/Renault/Peugeot range are smaller, now 1.6 litre Diesels are giving 110 BHP where the 2.0 litres are up to 130 BHP.
Totally reliable in my view - Never looked too deep into VW passat but engine and spec wise there excellent too.
Oh and the C4 GP .... Very good CD system too