Go! Go! Smart Wheels and Go! Go! Smart Animals playsets work together. Both of these lines feature the same types of tracks and can be connected together. Go! Go! Smart Wheels and Go! Go! Smart Animals also both use SmartPoint technology. Therefore, all animal and vehicle characters will give responses on all Go! Go! Smart Animals and Go! Go! Smart Wheels playsets.
Go! Go! Smart Friends playsets do not feature track pieces and cannot be connected to Go! Go! Smart Wheels nor Go! Go! Smart Animals playsets. Go! Go! Smart Friends uses MagicPoint technology and do not give responses on Go! Go! Smart Wheels nor Go! Go! Smart Animals playsets.