Hello.
I am the owner of a MY11 VW Multivan with a bolted in wheelchair lift for my disabled son.
We have removed the rear bench seat and replaced it with a third captain's chair which I bought several years ago on ebay. Now the car seats five with the wheelchair in the rear LHS position.
This solution has worked for us from 2011 until now. My son is now twelve and is getting a bit too tall for the car. We have a Caddy on order which we will be lowering the floor on and doing a full wheelchair conversion.
Cheers, Daryl