Mine has been at the factory for four weeks with a badly cracked chassis.
It is being replaced and I was asked to give them a month to do the work.

I went to an unofficial meet a few weeks ago and both the 2012 cars that turned up had the same crack in the same place. One of the vehicles had a completely sheared chassis. Both owners were unaware of the problem until I looked at their 3Ws All early non braced cars will fail, no doubt about it.
Factory were responsive in first instance but I have not hear from them since they collected the old girl.
I'm sticking with the 3W but it has been a hard slog. if it can go wrong it has.
I bought the 3W privately but have been well served by my local dealer and the factory to some degree.
Communication is the biggest problem. E mail should always be responded to in this day and age. I cannot conceive of ignoring my customers emails.