new option?

[models916]

Back seat delete option. Wonder what kind of block off plate they used?


http://cgi.ebay.com/ebaymotors/Chevrolet-Impala-BISCAYNE-1962-BISCAYNE-409-4SP-RARE-NOT-BELAIR-IMPALA_W0QQitemZ4603697667QQcategoryZ6169QQrdZ1QQc mdZViewItem

[MK IISS]

In earlier years there was a base model business coupe that didn't have roll-down back windows or a back seat. I didn't know it was still available in 1962. If it was, it would be interesting to know the option code or the delete seat/window control code.