Looking into low-mileage 09

jza

I'm looking at a 2009 Z Touring with the 7AT. The car has less than 7k miles, which can be a good thing or a bad thing. CarFax lists it as having 2 owners (each owned it 1-1.5 years and both low mileage drivers, go figure). First thing I'll do is check the tires to see if tread wear is aligned with this kind of usage (i.e. no ODO fraud). The first owner registered it as a commercial vehicle.
Only one service entry is listed for an oil change, which is a possible red flag since the owners may have though there's no need to change it if they aren't driving it much. But it's possible the owners changed the oil somewhere that doesn't log this information.
Any recommendations regarding general and/or Z-specific things to look for?
Thanks!