The M41 is probably the most reliable and maneuverable tank that HL currently offers. All the electronics are the same for the smoke and sound versions. Make sure you get the metal gearboxes and if this hobby is to your liking, get the metal tracks, spare parts, a higher capacity battery and peak charger. They will break, you will need a soldering iron and a screwdriver. The BBs in the little box are junk, the ones in the bottle with the Super Versions are great.