You would have thought that if you are going to sell a car, you'd at least take the trouble to / be intelligent enough to ....................
Wash it...
http://www.ebay.co.uk/itm/T-TOP-MK1-...#ht_383wt_1153
ditto....(and pay £25 for a V5)
http://www.ebay.co.uk/itm/2614283122...#ht_118wt_1153
or in the case of a red one for sale recently (that I can't find anymore) rinse it!
Ensure the photos are the right way up...
http://www.ebay.co.uk/itm/1988-TOYOT...#ht_214wt_1153
ditto - and take more than one or at least one with the whole car on...
http://www.ebay.co.uk/itm/1988-TOYOT...#ht_372wt_1153
I suppose if they are going to be this reticent, someone with MR2s close to their heart will probably get a bargain!