According to Xataka, a Mexican website, Motorola is working on two new Moto G variants. One of them is the Moto G LTE, which will pack LTE network support, obviously. The LTE model will come with 16 GB of internal storage and go on sale in Mexico this June for around $260. Internal specifications, apart from LTE connectivity, will most probably remain untouched.
Meanwhile, the Moto G Ferrari could possibly be a Ferrari-branded Moto G variant. Perhaps a new color scheme, exclusive themed covers, etc. Nothing that you couldn't live without. Xataka reports that the Moto G Ferrari will come in both 8 GB and 16 GB configurations.