This is a great find. It is the 1973 Datsun 510 Widebody, from Jada's JDM Tuner series. These are some great Tuners from Japan. If you collect Tuners, Datsun, Race Cars or Jada this is a great find for your collection.  

Collectors Note: Jada insists their cars are 1:64 scale. However if you put them next to a hot wheels or matchbox, they are larger. We believe they are closer to 1:50 scale, even though they say they're 1:64. While that is just semantics to some collectors, others will care which is why we are pointing it out.