Peugeot 106
Yes, it is quite small and there isn't much room if the back seats are reclined. But it's worth a try and I was really surprised.
I fully recline my back seats and set up the gate behind the driver seat instead, so the dogs have enough room.
It fits and it holds. Though I had to do a bit of tweaking it fulfils it's purpose.
If the dog isn't in a crate or there isn't space for a crate then this works.
It's great with my 2 German Shepherd mixes. I would buy it again, even though I did struggle a little assembling it :)