Hello I've sussed this problem out now its strange but I've fixed the problem!
Basicly the car takes 4 batteries 1.5v etc. Anyway tried the fujimax fujicell 2800mah 1.2v batteries all in it wont work. So did a test swapped the batterys around with the normal ones. I've worked out I can have 3 recharable batterys fitted in 1.2v with a normal 1.5v as well. The 1.5v battery has to be in a certurn place for it to work so the car now works!
The reciever the same thing 7 recharable batterys fitted in 1.2v then 1 normal 1.5v fitted in a certon place the reciever works now!
Looking at it the 1.5v batterys are the first ones in the circut then the rest are behind it on the car and reciever!
I'm not expert but I got the things to work now.
