I see for the new 2015 model year cadenza, Kia will add a new 7 speed transmission.
1 st gear will be a slightly lower gear ratio, for better getup and go
7 th gear will be a higher gear ratio to improve fuel economy on the highway
Maybe 1-2 mpg but not much
The latest on the 2015 transmission is, only the 6 speed for the USA version.
everybody knows kia makes different versions of the cadenza, different countries
get different add-ons and features.
No 7 speed for us at this time