everytime you are in a car you sit next to the fuel better or on top of it
Yes, but I'm near a heavy steel tank with say, 10 gallons in it. A hundred tonnes of fuel next to me? Nah.
Just what surface is giving the lift? Whatever it is, it'll have to counter the AND effect of the thrust.
If I could get a job as consultant for the company, I'd write a report consisting of just one word: Daft.