T/T in the marine context refers to "Tender To". As in a boat that is a tender to a larger vessel.
sport
If the car is an S6 instead of an A6 then it is the sport model of that car. This means the car has a more powerful engine and all the equipment to go along with that power.
It stands for "Motorsports" Audi has the S Mercedes has the AMG BMW has the M
Audi A8
It stands for "Motorsports" Audi has the S Mercedes has the AMG BMW has the M
I think the S is for sport, but the S models are the cars with higher performance/power, but thoose are rare models, so dont be confused with the S-Line badges which is a cheap design package from audi.
Audi r8
The Audi A8
The four rings stand for the four companies that merged together to make current Audi. They were Audi, DKW, Horch and Wanderer.
Sport. RS stands for RennSport (German for Racing Sport).
The first SUV Audi manufactured went on sale in the year 2006. The model of the SUV is the Audi Q7. It is a luxury SUV model offered by Audi for the public to enjoy.