Silver always looks so fresh and clean.
Dependent on how in to detailing you are, try get yourself an Werkstat Acrylic Kit, it's fantastic stuff on light coloured cars such as Silver.
I have seen a few post mention Warkstat Acrylic think I will get some ready for summer. This is my first silver car, all my car have been black and I must say it's a lot easier to clean. Need to spend some time on the wheels as previous owner let then build up will tar and brake dust.