The manual Mirage is .8 od 5th with a 4.0 to 1 diff (close enough). The CVT is a .55 OD with a 3.7 diff (again close enough).
The CVT first gear is 4 to 1. While the manual is like 3.75. The CVTs torque converter locks up before 10 mph and top gear revs per mile is probably 2/3rds of the manual.
My guess is they don't want to gear the manual too tall or idiot drivers would probably blow many more head gaskets lugging the engine.
With the CVT that is not possible.
All speculation and numbers from memory so they are close but not precise.
regards
mech
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