Those Losi batteries are for there micro range of cars, 1/36th scale. There about the size of a 50p coin
Paul have you had a look at the rules for the V12 series on the Mardave site?
http://mardaveonline.co.uk/2010Circu...sBRCARules.pdf
I think they would work for us with a small tweak (depending on what we do regarding batteries)
The main points:
Any brushed speedo with reverse with a RRP under £69.00
Must use the Mardave G2 brushed motor
Any 4.8 NiCad or Nimah cells