Their website address is now https://www.ferrarilakeforest.com and there is no trace of their past brands (besides the 12C rolling chassis that it looks like they haven't had luck getting rid of).
Just reading this thread. This does not match my experience with LFSC at all. My wife and I purchased a 2003 360 Spider last Fall and could not be happier with the sale and addressing a few minor needs immediately after the sale. I cannot say enough for my sales person, Tyler Dean nor Owen, Paul and Drexel in their Service Dept. Ben, their parts Manager, has been very accommodating and recently offered me a very attractive price on a Sport Exhaust w/installation. It was completed the same day. I've had a couple of conversations with Rick Mancuso over the past months and he was welcoming and very professional. As to the question about Koenigsegg, the dealership appears to be a Ferrari store only, although I did notice a few other individual marque cars in the south end of the showroom when I last visited a few weeks ago.