Yello,
as morning temps are below 5*C I am starting to hear strange noise: it sounds like drivetrain (differential) noise but it can be even gearbox. It's very intense sound on 1st-2nd gear (where ratio of wheel revs is geting quickly up) and it really sounds as old Colin McR Rally car sound

I never had small car like that before (72,000 km mileage today) so I am not sure if it's normal due cold oil...
or if wrong oil has been used in gearbox or if there is missing oil in gearbox or something similar?