Rules on selling cars, how many before i'm a 'trader'?

[tuscan_al]

If I was to start selling the cars I buy and do this say once a month, does this make me a trader? Would I have to advertise it so on autotrader etc? The cars would all be registered in my name, and then used insured etc as mine, then just sold on once I'm bored. I have read/heard things about only being able to sell 6 per year?? Does it make a difference too if I make a profit on these?

[tuscan_al]

Thanks for all the useful advice, I shall pass it onto the relevant party I never plan to make a profit, just wondered where u stand if you do.. Wonder how many people who buy at list then sell for profit ( Audi R8 / GTR's ) declare their 10k + profits ??

Your trader_al