The company LSD (Lamborghini Style Doors) converts doors of ordinary cars to suit an opening scissor style, which mainly provides a touch of differentiation. Yes, like its done to The New Mercedes CL car series with scissor Style doors.
On its usefulness not get me to value it, maybe Mercedes CL more convenient to park although in a garage its may run the risk of touching the roof. In the case of Mercedes CL the result is particularly striking because the windows lacked context. The advantage is that there is no need to modify the doors, only to install its system on fixations original doors.