A little info from a Super Shells leaflet: The Elite shell was made of polythene instead of the usual polystyrene.
The wheelbase was 2 11/16" (about 68mm), front track 1 15/32" (36.5mm) and rear 1½" (38mm).
The track dimensions were the same as for the F1 Ferrari (the 1961 156), but all three specifications were shorter than on the other two sports-cars. The E-type's were w/b 77mm, track, F+R, almost 40mm and the 250P's w/b 75mm, track F+R >41mm.
Hope my conversions are right - just done visually on slide calipers. I don't have dimensions for the 1:1 car, so can't contribute on scale.
Chenglaw's original plastic ladder chassis and wheels may have been for a static. The "Pop-in" chassis was different. Looks like a good replacement, though, chenglaw.
The passage on the Elite in the leaflet reads:
This 1/32 scale model has been moulded in polythene to assist removal
of the complicated one-piece body from the mould and to
produce a high performance, quiet running competition car. Parts include
window and lights moulding, chrome-polystyrene bumpers and
plastic chassis for static model.
The windscreen unit should be placed in position letting the lower
windscreen edge come in front of the instrument hood (above the
dashboard), then 'clicked' into position at the back. A little adjustment
with modeller's knife or file may be required to get a perfect
fit.
Drill two 1/16" holes in the body in the centre of the headlamp depression
to receive the light unit. All the parts with pins on can be
pushed into the holes in the body, then heat-sealed with a warm
soldering iron. (Test on a piece of spare material supplied with the
clear parts.) Alternatively, polystyrene cement can be applied to
the pins coming inside the body to hold them in position. The bosses
inside the body will hold the chassis either with 6 B.A. screws
or small self-tapping screws. The body is polythene and the fittings
are polystyrene.
COLOURS:- RED, LIGHT BLUE, DARK GREEN, WHlTE.
PRICE (U.K.) including set of 4 x 19 mm. Sports wheels and tyres,
axles and hub caps. 12/3d p&p. 1/-. Lotus Elite body only 10/- p&p 9d.
Wheelbase: 2 11/16" Track: Front 1 15/32" Rear 1½"
[E Type w/b 3 1/32", track F+R 1 9/16]
[250P w/b 2 15/16, track F+R 1 5/8"