Yes, in 'echo 3 true story', 'echo 3' is likely related to the 'true story'. It could be the name or identifier for the events that make up the true story.
Some owners reported issues with the transmission. It would shift erratically, sometimes not shifting at all. Imagine being on a busy road and the car refuses to go into the right gear. It can lead to near - accidents and a great deal of stress for the driver. This problem was often difficult to diagnose and costly to fix, leaving many Saturn Ion Redline owners frustrated.
One horror story could be about engine problems. For example, some owners reported that the engine would suddenly lose power while driving, which is extremely dangerous as it could lead to accidents on the road.
In most comic versions, Echo isn't deaf. However, there might be alternate or special story arcs where this could potentially be a trait, but it's not a common characteristic.
Sure, Echo is portrayed as deaf in the comics. This trait plays a role in shaping her personality and the challenges she faces throughout the comic series.