Ok here is a couple of pictures. Not too exciting as it's bone stock. I can't remember who wanted some measurements but here you go. Inside before the wheel well is 96" wide from the back door to the wheel well. The space between the wheel well is 78.5" wide. The length from the back door to where it cuts down is 72". The is in my 8.5x22 VRV.

My 2 year old loves it. rides his bike down the ramp!

In this picture you can see the wheel wells cutting into the space

and this one is just cool!
Today was a shake down of sorts. Run everything to make sure it worked. This morning was 32 degrees and the heater had it 80 in about 45 minutes.
Let me know if anyone wants more information and I will try to provide it.
Steve