I am new to this board and I am liking it! I see you are all interested in drive from wheelchair cars, let me show mine
It is a VW T5 Multivan with joysteer steering (4-way joystick). More information about joysteer can be found here: http://www.joysteer.ch/index.php?id=6&L=2 I guess this is not available in the US. It is a bit like the EMC Aevit system I think. What I really like about the system is the feedback you get through the joystick, you can really feel what your car is doing.
The floor is lowered a little bit as I am quite tall. I use a permobil c500 lowrider that is secured with a permolock. the passenger seat is mounted on a permolock as well, so I can be passenger and my wife can drive the car if needed.
I chose a side entry lift because I really wanted to keep the back seats and not lose all the space in the back. The lift is a Braun UVL.
For the secundary functions (direction lights, horn, ...) I use smartsteer (warning, dutch pdf: http://goo.gl/tORjPH).
And last but not least, a picture of my car on the beach in Denmark:

I don't have any nice interior pictures atm, but if you guys want, I'll arrange some...


