Audi Avant (wagon)
Our Audi A4 wagon fits two vintage longer wheelbase bikes easily without removing the front wheels. They lay flat with drive sides up and a couple of dog blankets between them, as the second bike in will overlap and lay somewhat over the first.
I recently hauled one bike and a 50 lb Springer Spaniel from VA to Cape Cod comfortably, with plenty of space for both dog and bike. We averaged 28MPG driving lead-foot on the I95 racetrack as well.