[aerohead]

1) After printing the plan-view photograph, and using the published length, here's a list of estimated dimensions and ratios for the car:
Length ( L) - 4630mm
Width ( W) - 1679mm
Height (H) - 1300mm
Body height (h) - 1180mm
Ground clearance ( GC ) - 120mm
Wheel-base - 2799.08mm
Maximum body width ( @ front axle ) - 1679mm
Minimum body width ( @ greenhouse maximum width ) - 1530.7mm [ the car is more narrow than Subaru Justy, Renault Vesta-II, SMART ED, VW Beetle, Chevy SPARK )
Secondary maximum body width ( @ rear axle ) - 1624mm
Greenhouse length - 3275mm
Greenhouse width - 1355mm
Forebody - 2441.4mm ( 52.73% )
Aft-body - 2188.5mm ( 47.27% )
Verjungungsverhaltnis ( V ) - 1.85363
Active diffuser elongation - 99mm
Wake area = 35% Af
L/H - 3.56153
L/h - 3.92372
L/W - 2.75759
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Ave - 3.41428
L/ sq-root of Af = 3.37562
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Dimensionally, the EQXX cross-section is similar to the 1992 Dodge Colt, 1990 GEO Storm, and 1985 Chevy Cavalier Z24.
Its length is similar to the 1988 Mercedes-Benz 300 CE.
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Plan-view boat-tailing - 1230mm ( 25.5% total body length )
Tire width - 185mm
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The EQXX contour matches the 1922 Wolfgang Klemperer basic half-body, Cd 0.15.
A long-tail, with low-drag diffuser would require 1320mm elongation.
With full wheel skirts, maybe Cd 0.143.
With wheel fairings, lower.