I saw quite a few Z4s on Saturday being driven really quite aggressively, weaving between traffic tailgating, tyres screeching and red-lining every gear. And I did not see any of them indicating. 
Plot twist: I was at Silverstone marshalling the 750 Motor Club Birkett 6-hour relay at Silverstone, and there were a few Z4s in the field. My heartiest congratulations to any ZRoadster members who were involved. Unfortunately we're not permitted to use our phones or take photos during the sessions, but I managed to grab a few at other times during the day.
(Izzy has been SORN for the last few months after running out of mileage on my insurance
)
Sunrise from the National Pit Straight, before the days action started.
Sunset from the National Pit Straight, after the days action concluded.
Plot twist: I was at Silverstone marshalling the 750 Motor Club Birkett 6-hour relay at Silverstone, and there were a few Z4s in the field. My heartiest congratulations to any ZRoadster members who were involved. Unfortunately we're not permitted to use our phones or take photos during the sessions, but I managed to grab a few at other times during the day.
(Izzy has been SORN for the last few months after running out of mileage on my insurance
)Sunrise from the National Pit Straight, before the days action started.
Sunset from the National Pit Straight, after the days action concluded.