Full of shit? In every case, I typed the model into Google, and took the lowest number. The rest of the weight are for options, so they are not relevant.
The ones I mentioned were because the Volt and CRV had already been discussed. I have an F-150, and it the best selling vehicle in the US for the past 32 years. (source: wikipedia) I chose the Tesla because some people cream their pants green whenever they hear that word.
Tough shit that Ford is making an aluminum F-150. Good for them. The Tesla is also aluminum, so it is an apples-vs-apples comparison.
That said, here are the numbers right from the manufacturers:
Ford F-150 4x2 = 4,050 LBS source: http://www.ford.com/trucks/f15...
(Note that even their tiny engine has 325 HP and 375 ft-lbs of torque, which is necessary for a truck)
Tesla S = 4,647 LBS source: http://www.teslamotors.com/sup...
(If the Tesla has higher horsepower, it is only useful for making the owner's dick get hard.)
Despite what you want to believe, the numbers are what they are. And I just wasted a half-hour looking them up for you.