How large can “compact” cars get?

Yes, the Neon in the photo is a second-generation car.

For a compact sedan, the 2013 Dodge Dart is very heavy. One of the reasons it’s very heavy is that it isn’t very compact. Fifteen years ago it would have been considered a midsize car.

Compare the Dart’s size and weight with the 1998 Dodge Neon and 1998 Dodge Stratus:

Dimension Dart Neon Stratus
Wheelbase 106.4 104.0 108.0
Length 183.9 171.8 186.0
Width 72.0 67.6 71.0
Height 57.7 54.8 54.1
Weight 3186 2399 2921

 
Consider interior dimensions, and the picture is murkier:

Dimension Dart Neon Stratus
F Shoulder 58.2 52.5 55.2
F Leg 42.2 42.5 42.3
R Shoulder 56.1 52.3 54.7
R Leg 35.3 35.1 38.1
Trunk 13.1 11.8 15.7

 
The Dart’s interior is midsize in breadth, but not in terms of legroom or cargo space.