Doesn't look very good to me.
The curved pillar makes it look like a coupe with some extra bodywork stuck on with modelling clay.
Reminds me of a Honda Civic Wagon but with less style.
Of course, this is merely my opinion.
Here's what I thought a 1977 Celica Wagon could have looked like (via Photoshop)
http://ourworld.compuserve.com/homepages/stepho/tnra29w.JPG
Toyota tried both concept cars for 2 door wagons on both the 1971 Celica (RV-1) and the 1972 Cressida (RV-2)
http://ourworld.compuserve.com/homep...oncept.htm#rv1
http://ourworld.compuserve.com/homep...oncept.htm#rv2
Both sunk whtout a trace.
- Stepho