I've seen a few over here but they weren't very stylish in fact they looked like someone had draped an old striped deck chair over the roof bars, not a good look.

This Plus 8 one looks like a really well thought out and constructed one to me.

2009 4/4 Sport Henrietta
1999 Indigo Blue +8
2009 4/4 Sport Green prev
1993 Con Green +8 prev