All very valid comments guys.
Diesel vs petrol is personal choice. There is little difference in the outright performance of the F30 328i and 330d. Having driven 62k miles over the last two years in an E90 LCI 330d my preference is for petrol. The biggest handicap to performance in the 330d is the lack of LSD.
But I say again whichever F30 MSport you have on order you will LOVE it....