Comparison between the models

This comparison is based on technical specifications as available in brochures, books, articles etc.

Item \ Car	Lombardi Grand Prix	OTAS Grand Prix	Giannini Grand Prix	Abarth Grand Prix	Abarth Scorpione S	Abarth Scorpione SS
Engine	Fiat 850 Special (843cc)	Giannini tuned Fiat 850 to 817cc (smog except)	Giannini modified Fiat 850 to 982cc	Fiat 850 Coupe MkII (903cc)	Fiat 124 (1197cc) pushrod bored to 1280cc
Bhp DIN/rpm	43/6400	55/7000	?	52/6500	75/6500	100/6200
Comp. ratio	9.3:1	10:1	?	9.5:1	10.5:1	11.5:1
Gearing	4.63		?	?	3.89 or 3.70 (?)
Bellhousing	Std. Fiat 850		?	?	Abarth conversion
Starter	Std. Fiat 850		?	?	Special Marelli
Engine mounting	Pressed steel crossmember in standard 850 position				Abarth tubular crossmember under sump (round section)
Exhaust	Fiat 850	Abarth tube headers & muffler	?	Abarth tube headers & muffler	124 cast header, Abarth muffler
Carburator	?	1 bl 32 Solex or Weber	2 bl 30DIC Weber	?	2 bl Solex 32 PHH or 2 bl Weber 32 DCOF
Sump	Fiat 850	Giannini alloy or 850 tin	Giannini alloy	?	Fiat 124 tin
Valve cover	Fiat 850 tin		?	?	Fiat 124 alloy or tin
Front susp.	Transverse leaf spring, anti-roll bar					Unequal A-arms. concentric coil springs, anti-roll bar
Rear susp.	Semi-trailing arms, coil springs, anti-roll bar
Battery location	Luggage compt. std. Fiat 850		?	?	On right side of engine mount
Radiator	Driven fan on waterpump		?	?	Front with electric fan, rear filler tank
Heater	Mounted at nose with long ducts		?	?	Behind radiator
Fuel filler	Left interior of engine compt.		?	?	Upper left rear 1/4 panel-exposed
Fuel tank	Std 7.9 US gallon		?	?	std 7.9 US gallon opt ?
Wheels	5 1/2" deep offset steel (round holes) or various magnesium alloy		?	?	5 1/2" deep offset steel (tri-oval holes) or Campagnolo magnesium alloy
Seats	Low-back buckets	High-back buckets head rest added	?	?	Low-back buckets
Gauges	2 small and 2 large	3 small & 2 large	?	?	2 small and 2 large
Light/wiper switches	In center dashboard pot	At left corner of dash	?	?	In center dashboard pot
Control pedals	moved 4" to rear, no footrest		?	?	Special & with left footrest
Steering wheel	Alloy / leather (small) Ferraro		?	?	Abarth 3-spoke alloy/leather
Ash tray	In front of shifter	None	?	?	In front of shifter
Body*	Steel (with glassfibre doors)	?	?	Steel with glassfibre doors, aluminium bonnet and engine compartment	Steel
Weight	12 cwt	?	?	12 cwt	14 cwt
Length	11 ft 10 in	?	?	11 ft 10 in
Width	4 ft 10.2 in	?	?	4 ft 10.2 in
Height	3 ft 6 in	?	?	3 ft 6 in
Ground clearance	4.5 in	?	?	4.5 in
Bumpers	None	Nickle plated or fiberglass	?	?	None in front, trim strip in rear
Grille opening	Slit in nose		?	?	Slit in nose, 3 more openings below
Engine lid	3 individual louvres		?	?	One piece with 10 fore & aft slots

* All models have removable glassfibre tail panels

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