Some explanations to some of the design decisions made on the new Lexus GS :

Shape of the Rear Lights

Why 6 Speed and the Advantages of Hybrid Drivetrain

The first article I understand and accept but the explanation of 6 speed vs 8 speed sounds kind of unconvincing. However, the hybrid advantage I fully accept - the GS450h F-Sport I test drove has instantaneous torque.

Also some how-to videos on operating your 2013 GS :

Instructional Videos

Go to the link, select the GS350/430 model then select model year 2013.