I do not doubt as Blackmercedes said Mobil 1 5w30 is good oil but for reason I stated before My vote is for 10w30 on your 16v.
If you look at the data sheet of Mobil 1. You could see the cold start performance difference between the 2 is really minimal. Just pick what you feel more haapy with and you will not go wrong.
Enjoy the winter...