If your 159 or Brera 2.2 takes two shots to start change your fuel to 95 oct. This will fix your starting problems. I use Caltex 95 premium .
Obviously they've stopped putting the stickers that say "95 RON Minimum" inside the fuel flaps these days?
Old or stale fuel of any type can make the car hard to start. The addition of fresh fuel of any type will usually sort that out.