Okay, I am definitely going with a crate for the car. And who knows, maybe at some point in time the sports coupe will be traded in towards a more dog friendly car. I had actually looked at the Honda Element at the Seattle Dog Show and liked it. But Honda is stopping to make the model, so I might look at something else. But the crate in the back seat will be it for now. Thanks everyone for your suggestions.
You should do fine with the crate in your car. If I could fit one in the front seat of a MINI Cooper, you should do fine with yours!
…and ha! I too looked at the Element (and lots of other vehicles at Lure Coursing this summer :D). The big negative to me with the Element was how the seats folded - they fold to the side and partially block the back side windows so the only way you could drive with the back seat folded would be take them out (uh, no). When I seriously started looking/test driving cars at the end of August, I made all the dealers fold down the back seats so I could gauge how crates would work - some even offered to let me put the crates in the back while figuring it it out.