Amazon have a great offer on Orchard Toys Giant Road Jigsaws, reduced from £13.95 to £5.58. Obviously you're under the £10 limit for free shipping, but as one of our HUKD'ers mentioned, you can buy two puzzles for an extended play mat/puzzle area, and the grand sum total of £11.16. Sure beats paying £8.88 with shipping.
My girls love their car mat. They can create a whole village life out of it, which is just great for imaginative play. The thing is a pain though, because we don't have a space for it, so it goes from under the sofa to behind the door to under the table to wherever else is out the way of where we are right now. At least with this set, you can pack it up in a puzzle box and put it away in the toy box or wherever. I love that idea!
The pieces of this puzzle are interchangeable, so you can change the layout of the roadway every time. That's quite fun and different. And obviously you can use whatever vehicles you already have with it.
It looks like a great little multi-purpose puzzle to me.