just bought a Octavia estate 2018 plate with dsg auto gearbox

noticed a recurring hum between 60 and 70 mph

any ideas

Wherabouts is the hum coming from?

 

Could be tyre noise?

Hum could be anything from road noise to a passenger humming along to a tune....... may need to be more specific or get a passenger to try and record it?

A lot more information is needed for anyone to stand a chance of identifying the cause,  does it remain constant or vary according to the type of road surface ? any different between dry road & wet road ? ..