hmmm...let me try explaining the names, as per my observations...I home Ban and Mods can further elaborate/correct it.
New Arrival - The name is quite self explanatory. A new car newly launched. And so are you in the forum. Example - Cruze
Driven - This means that you are a car and has been driven now. Its no more a new car sitting quitely in showroom or your garage. Example - Fortuner
Road-Tested - The car(You) have been road tested now. That means that you are quite well familiar with the forum members or the car is known to many people in the region. Example - Linea, Punto
Long-Termer - Nothing much related to car but still the cars which have been in market for long time and are quite well trusted and so are you in the forums. Example - Swift, Dzire, Vista
Beloved - The name is quite self-explanatory and you/car are the most beloved car in the market (member in the forum). Example - Honda City, Accent, Scorpio, Safari
Best Seller - The car which is the best seller(just like books) for past many years and so are you in the forum. You are here for so long and are quite well known and any thing told by you is the end of the discussion. Example - M800, Alto, Mercedez, Indica
Legend - The word is again self explanatory and is for the car which has been there for many many years and is still loved/appreciated/owned by people for whatever cars. And so are the members due to their experience, love, warmth they share and spread in the forums. Example - Ambassador, Vintage cars, BMWs, Mercs, Audis
Mods - Ban, Pankaj, Binoy. This is what I think fits to the names given as per post. Hope my feeling is correct. Please do elaborate/correct, if required.
Those who claim that they know everything do not know what they dont know.