Green C6 RS6 in Victoria

[MikeFish]

I spotted a green (yes, I know, green!) C6 RS6 in Victoria at 5pm today. Guess it was leaving Victoria Audi as it was on the same road. It was a 58 plate and had no badges, but it had the oval exhausts and boxed arches so I assume it was an RS. Didn't see the front end / grill though.