"Now that you understand my lack of knowledge what does "2g drivers" mean in laymens terms?"
1g 1995-2000 Sedan Only. SE 2.0, SE 2.4, ES 2.4, ES v6 2.5.
all dodge parts, except the v6 2.5 which has a mitsubishi engine (galant)
2g/ 2.5g 2001-2006 (2.5g updated the look of the car slightly)
Sedan - SE, ES, SXT, R/T Dodge made engines 2.4l and 2.7v6
Coupe - SE, SXT, RT based on eclipse 3rd gen platform (slightly longer)
Available with the mitsubishi 2.4l and 3.0v6 engines
Sedan and coupe are completely different cars, with similar styling cues to market them as one name.