highly recommend Final Inspections sealant range if you want protection.
If your car lives outside a lot, go for FI Seal Strong (1 year), but if the opposite, FI Seal would be fine and a cheaper alternative. You can multi layers of Seal like i have which would give you plenty of protection. I've got about 4 layers down now and this would see out 12months i would think, with good washing procedure. But Seal Strong is definitely a much beefier option straight off the first layer.
Both can be topped with your Carnauba wax of choice for a depth and gloss, and it looks like you have a dark coloured GTR, so this would work nicely.
But prep is key, at the bare minimum clay your car first.