I've had issues with the alarm on and off. It would either not go at all or sound at odd times. My brother who is an electronics person fiddled about with the contacts between the roof and the car body and that sorted it. Be careful though because they're very delicate.
I've got the Winter Edition and I've found that you have to be very careful resetting the roof and hood if you drive with the lid off...
The Streetka has several quirks but those of us who have fallen in love with it just don't notice them and even when we do we don't care! It's just so much fun to drive that quirks either add to the enjoyment or don't count.
Hmmm not sure if roof contacts would be our problem as we dont have a hardtop. Still can not get it working, its a strange one