The yellow car we weighed (a couple posts up) was a Premium power seat PErformance Pack 6-spd with no fuel. This grey car above is a Base interior cloth car with Recaros and Performance Pack, plus a 1/4 tank of fuel (shown).
Know this: FORD IS NOTORIOUS FOR GIVING OUT BOGUS WEIGHT NUMBERS. The New aluminum F-150 is supposed to be "700 pounds lighter" than the outgoing model. That is nonsense. GM does it also - they claimed that the the C7 Corvette was "100 pounds lighter" than the C6, when it fact it is 300 pounds heavier.
The GT350R has Carbon fiber wheels - which is one of the worst ideas floated in Detroit in years. This is just NOT the right material for wheels. Shelby tried to pull this off years ago with a Dodge Daytona - terrible results. We will definitely be offering proper aluminum, semi-forged wheel replacements for GT350R models soon.
We've already put 18x11s on an S550 over the 15" brakes and they look GOOD!