Personally I think this says it all:
"Vauxhall clarified, explaining that upon launch, the Viva was a four-star car, but since then the car's lane departure warning was made an optional extra, instead of standard, decreasing the car's rating in the process. The system now costs £165 as an extra."
So lane departure warning is part of the NCAP? I think it's time something else got tested. At what point does "Requires the driver to steer, brake and accelerate" become a zero rating?
Note the quote from FIAT:
“Safety is of the utmost importance to the FCA group. When Punto was launched 12 years ago, it was the first 5* EURO NCAP car in its class. The importance of safety to the FCA group is demonstrated by the number of new models achieving 5*, for example Alfa Romeo Giulia, Alfa Romeo Stelvio and the Jeep Compass.”