A full tank....16.9 gallons weigh 135 lbs., MMD don't worry about a piece of luggage throwing your mojo off.

OT....I hadn't driven rear-engined car in awhile and after mostly driving my E46 M3, at first I actually preferred the 997 with a full tank just for the more even f/r weight distribution. Eventually I got my mind right and ended up at the other extreme, now convinced 997 is more fun with 1/4 tank or less.