A nitro 1/10 touring car weighs in at about 1.7 kgs, about 3.8 pounds. There is no way you can find a nitro car of 2 pounds! Even a NTC3 is over 1.5 kgs.

You will need a wing of about easily 52"-58" (bigger wing makes it easier to glide and you need not have so much power) with a chord of about 8"-10" to make this flyable. This is all just to keep it potentiall afloat. Now let's talk about powering the plane. The plane will need a nice big outrunner to turn a prop of about 16x8 at a minimum. Something like an AXI 4130 is a minimum. Now we will need batteries, say something like a pack of 5S2P. The electric motor and batteries will take your whole car-plane to about easily 8 pounds.

Do you think its worth it? Why not just go to buy a flying lawn mower?