Any model shop worth thier salt,will make up hump packs for you with modern NiMh cells easy or you can do them yourself if you have a big enough soldering iron and know what you are doing.There will be alternative batterys for sale by the time the car is released i am sure.
Also the special nicad pack for the narrow F1 cars fit as well NP1700.
As Ferretti has said,there are already Lipo packs that will fit,i have some 1800 Mah ones that look lost inside the old SRB radio crate,so no problems for any type of batterys being available from what i can see.
