I agree that it should be right first time. But I also think that any QC should have been carried out and satisfied before a launch date was given....
They could have just carried out the QC this week and then announced after it was complete that the car would be released on X date.
I dont have one of these on order, I am happy with my RB5 Vega and have the Lazer FS2 SP on pre-order so there is no bitterness on my part, I just think in my opinion that all the necessary checks should be carried out before any announcements are made to the public regarding release dates.