Vectra 2.0 diesel.
I owned one of these just over a year ago and quite frankly could'nt get rid of it quick enough, I had my 52 plate for 3 years and suffered nothing but problems.
I bought it with 40k miles and within 3 months developed problems with brake sensors which manifested in the brake pedal becoming very rigid under even light braking, the solution was to change all the sensors and the total cost was £200, then the rear calipers began to stick so that was another £180.
I found the car to be poorly made with the seal round the windscreen leaking, the leather around the gear lever burst and the sound system developed a fault. the electric windows slowed down when in use then stopped working altogether then it developed a loud knocking when using the central locking which turned out to be the locking petrol flap actuator, another £175 to repair and the horn started going off for no reason which was put down to a sensor in the steering wheel, it stopped when the wheel was turned but that was after it had woken the street.
The car was reasonably economical returning around 50mpg but the mot's were dreaded with track rod ends, brake pipes and wishbones needing changed practically bi anually.
It was ok to drive when everything was working and a nice motorway cruiser but a terrible motor on corners.
As a rep for over 40 years, I have had the experience of driving many, many cars. Over about the last 20 of those years, quite a few of them have been Vauxhalls (8 of 11). I had 2 Cavalier MkII Petrol (one an sri), 4 Cavalier Diesels (3 of them the 1.7 Turbo intercooled engine), and the most recent, a 1999 Vectra DTi 16v CD. I have always liked Vauxhalls, for their excellent engines, good design and for the fact that they are suited to my job - large load carrying capacity and comforatable interior. The Vectra is no exception. Despite a hammering by the motoring press, I think the Vectra has been reasonably popular, esp with fleet managers. I find the 2.0 DTi engine to be a joy to drive. It revs round to 5000 revs (quite good for a diesel), meaning that there is not as much 'pick-up' at low revs as with the VW engines. However, it also means that the performance is more constant. The fact that acceleration is not as immediate makes the car more pleasant to drive 'normally', with a good deal of lift in the upper range if needed. The car in general is very easy to drive, handles well, has extremely sharp brakes (as I found out recently), and is remarkably comforatable to sit in. I find the car to be very attractive - it is conservative in appearance, but has a 'commanding' look about it. There is a good amount of equipment in this car (including CD player, air-con, wood trim, 4 elec windows, 3 proper seatbelts in the back etc) So far we have had no trouble with the car, even with a lot of miles being covered every year. Many of the motoring press consider the Mondeo to be better. They are wrong. The Mondeo is not as well designed, well put together, nice to drive, doesn't have as good engines, looks like a dead fish, steers constantly to the left. The Vectra is better with regard to all these points, and people should bear this in mind when buying a car in this class.