There's very little in this ad save for the photos: 1964 impala wagon - $3900 1964 chevrolet impala ss fuel: gas title status: clean transmission: automatic 1964 impala wagon runs and drives original 6 cylinder needs some tlc negotiable
My guess would be that either they aren't very motivated to sell, or they are afraid that additional photos would scare off potential buyers.
I don't even think it's an Impala. Looks like a bargain-basement Biscayne to me. (Top wagon on this brochure page....green one.)
Krash, you are probably right. Every 1964 chevy is an Impala, just like every 57 chevy is a belair...I hear that from the youngsters all the time.
The Impala had a higher trim level: This one for nearly thirty grand with a 409 PRNDL (poor tranny): http://www.cardiffclassics.com/detail-1964-chevrolet-impala_409-station_wagon-used-3396094.html