I have a console carseat and I swear I don't know where I got it - somewhere on the internet. I can only find the shipping receipt which is from O'Donnell Industries - which is probably the warehouse, rather than the distributor. The shipping receipt calls it the large denim console. You can see it on ebay - the aution has ended, but here is the link.
http://cgi.ebay.com/ws/eBayISAPI.dll...category=20745
Scroll down to the bigger pix by itself where it says U.S. 58.00.
I just measured Rowdy's (he loves it by the way) and it is 12" wide on the outside and 8" on the inside. It is wider than my console (I have an Impala) but it is made of foam and it just squeezes together between the seats and it works just fine. My hubby has a mini pickup and it even fits on that little console.
Rowdy is 4 1/2 lbs and it fits him perfectly.