The real Gremlin X was the 304 AMC small block with the 3sp. But later on when they dropped the V8 you could get the X package with the I6. Those Gremlins were awesome, always wanted one.
Fuck that 3cyl shit go for the old Mazda 323 GT-X with the turbo and awd. I guess you can use them for rallying, whatever that is.