Datalogger would be amazing.The GT-R's display is too analog per today's standards it seems. Those customizable displays on the same view plane are useful and easily programmed. Plus the new Z being twin boosted I'd want all kinds of temp gauges and AFR, and then laptime monitoring i.e. data logger. Hope for all these guys, but I'm sure would be in an options package. .
I love the idea of a g-meter, but honestly it needs to record the data. If you're pulling any serious gs you really shouldn't be looking at your dash at all.