It's not a Q5, it's a custom bonding between a A5 SE upper, and a S-line Q3 lower half.
AFAIK there's only 3 made, but you could replicate it. One belongs to that_teal_a5, another in the states, and I believe the one in your picture there is currently sat in my shed.
AFAIK there's only 3 made, but you could replicate it. One belongs to that_teal_a5, another in the states, and I believe the one in your picture there is currently sat in my shed.