hi, yes i would deff go to nearest club to see what people are running but the b4.1 is still good car i have 2 a standard and a worlds, the car is easy to set up, bits are easy to get and its a very forgiving car to drive, and yes a 6.5 would be very rapid got 8.5 in both of mine and savox servo is good choice, as for schumacher and losi both very good cars but seem to be harder to set up a freind has losi 22 and he is going back to b4.1 as for batterys i run crc lipos and yeah racing, speedo def go sensored thats about all i know on that but i got orca and tekin rs
