Tracer = Escort sedan.
ZX2: 67.4"W x 52.3"H- about 20.81 sq ft; .33 Cd
Tracer: 67.0"W x 53.3"H- about 21.08 sq ft; .34 or .35 Cd depending on online source :/
So there are both frontal area and Cd disadvantages. The chassis should be nearly identical.
I would have sworn just by looking at them (and getting in and out of them) there was a greater difference in height!