I have a Fiat Grande Punto, had it since new in 06 but now need something bigger, been looking at the xsara piccaso or the Renault Scenic because both of these have 3 seperate seats in the back and a flat rear floor.
Are there any other cars that have these? prefer a diesel maybe a 1.6, really dont want the tax, insurance and fuel costs to increase by much.
Any advice appreciated.

A Transit.

steer clear of a van tbh, insurance goes up as they are a high theft vehicle.

How much do you have to spend really as then people may show some examples.

The olds had a piccasso mk1 (05 reg) and it was a good car, had no problems, then again it was very low milage ie 5k per yer.

Zafira is another one and also their is the kia varient (forget the name)

As i said before tho get a budget up and it will help.

lol @ Transit.

well my car is worth about 3k and tbh we cant afford much more on top of that, I hate the Zafira, unless its the newer shape which is obviously more than we can afford. The Kia Sedona (think thats the one you mean) is too big.

Joking on Transit, but it fit your description well.
Why not be like everyone else and do scrappage on a perfectly good car for a crappy Kia? Couple of months left.