A production version of that large drop top would have been fantastic, but there were reportedly design as well as cost issues. This same inside source is also claiming that Cadillac will debut a new large sedan concept at Pebble Beach this August. However, Cadillac is still being cautious in regards to its future large sedan plans. A Cadillac source admitted as much by stating that "In the past, we would have gone ahead with this (a not fully researched concept) and only then realized we made a mistake when we started losing a lot of money on it." We’ll just have to wait until next month to see what’s being planned, but at least a large Caddy RWD sedan is still very much in the cards.