I have a similar picture of me removing pedal covers when I first bought my Westfield. Since there are no doors, my legs were hooked over the seat back and roll bar. I'll dig it out one day and share my exposed belly
Best hope you don't need to change one in the Z4 cos they are in exactly the same place. Fortunately my lovely other half fixed mine for me but he ended up in a similar position just without that nice big sill to lay on
I have a great picture of me in my other half's 206 in a similar position! It looks like i'm about to drive off using my toes as eyes and nose on the pedals.