test drove both before buying a veccy b
the veccy c was an 02 plate with 30k on clock [stamped history] - was very comfortable, big and spacious, i felt secure in the car however i found it very heavy and awkward to drive around birmingham, also as it is heavy it is not as sporty and responsive as the veccy b
the veccy b [02 plate] i drove had 100k [stamped history], half half leather interior, sri, no cruise control like the above felt a lot lighter and was much much quicker and sportier, the interior and chassis is like any other veccy b but slightly more refined as it was last of line for that revision
also the veccy b was 1500 quid cheaper than the above so i bought the veccy b obviously 😛
if you want my opinion then if you have a family and you dont care about performance but want a car that is comfortable and has a bit of grunt then go for the vectra c but if your after a bit of raw power and fun then the veccy b will win hands down