I wanna move to the US lol. Yes in non official events where you can run anything in modified. Ive run 6.5 lipo and 5.5 lipo and 3.5 with 5cell and even 3.5 with lipo
i found that about 4.5t with lipo would be about the most you can get away with.
As 3.5 lipo was crazy fast and kind of eats the car !!
Jonny