Info
The SC was offered with a five speed, but it was not a T-5. it is a Mazda built M5R2.
As for curb weight, heavy, gas milage, depends on how you drive. On the highway I will get are 25 or 26 miles to the gallon. In town I get around 15 MPG, but my car is not stock either, although I have not notice much of a change in milage as I have made the modifications.
Dave