Then you have a good idea whether the car is still around or been scrapped. If you can think of a good reason why you want to know the whereabouts of the car (eg I want to buy my old car back as it has some strong emotional memories) you can apply to the dvla for the vehicles particulars. Its not in the list of reasons that they allow but it has been successful in the past with a bit of hard selling (sob stories etc), its just a matter of justifying "reasonable cause" and the V888 form specifically allows for previous keepers requesting information at an enhanced fee of £5.
hi,if you google the reg number you will get loads of sites to look at. on a couple you will get the make,if and when last taxed and mot`d.you will most prob be charged for full details but i don`t think it was too dear. if you dont mind paying then the dvla is your best bet, cheers