The first generation Cressida was sold from 1977 thru 1980 as either a 4 door sedan or 4 door station wagon. The base engine was an I4, but there was an I6 option.
The second generation Cressida was sold from 1981 thru 1984. The I4 engine was gone, leaving the I6 standard. Automatic seat belts were standard on all U.S. models. The electronic automatic transmission had three modes: economy, normal, and power.
The third generation Cressida was sold from 1985 thru 1988. There were only a few changes from the previous model. The wagon was dropped after 1987, and the economy setting on the automatic transmission was dropped because drivers weren't using it. Manual transmission was not available on the 1988 model.
The final generation Toyota Cressida was sold from 1989 thru 1992. This car was only sold as a 4 door sedan. The automatic transmission was the only option, as was the I6 engine.
There are several places to find a nice used Toyota Cressida. I usually go right to eBay, but there are some other options, such as Craigslist and my local newspaper classifieds, both of which are longshots. You'll probably end up right back at eBay.