135i LCI DCT final drive (3.46 or 2.56)?

[Ohio Enthusiast]

As my hunt for an E88 continues, I'm starting to lean more towards an auto over a manual. One thing I'm not clear on is what is the final drive ratio that the DCT comes with.
BMW specs say 3.46 but many 3rd party sites say 2.56. The 335is (which AFAIK shares the same DCT as the LCI 135i) also has a 2.56 FD.
The 2.56 FD seems to make more sense as the 3.46 is super short (giving ~3200 RPM at 70 MPH in 7th gear), but the BMW spec is consistent for multiple years and between the coupe and the convertible.

Not a huge difference either way, but I'll be test driving a 335is DCT and want to be prepared to notice any differences against a potential 135i purchase (as I don't have one local).

[DWN-N-OUT]

From the research I did looking for a LSD to swap into my car all 1 series autos have 3.46 FD, manuals have 3.08 FD, and DCTs have 2.56 FD.

ETA: https://vacmotorsports.com/135i-and-...als-explained/