The interior was quite luxurious for a Volkswagen at the time equipped with a padded dashboard and instrument panel including speedometer with odometer/trip, tachometer, clock, fuel gauge, ammeter and oil temperature gauge.
The integrated center console houses switches for lights and two-speed fan, the dimmer for the instrument lighting and ashtray/cigar lighter. Map reading lamp in the passenger door.
The short gear lever, the handbrake lever and the heating levers are covered with wood.
Two contoured seats with integrated head restraints and three-point seat belts were fitted. Door open warning lights are fitted. Two seat belt type fixings are used for luggage in the rear compartment.
Polyurethane and rubber-coated steel bumpers, partly plastic-coated were used. There were various exterior colors combined with black or beige interior to choose from.
A reflective trim in red or black color and dual headlights reinforced the sporty appearance.
The floorpan assembly is identical to that of the Brazilian VW 1600. Both SP-1 and SP-2 had disc front and drum brakes at the rear.
The basic type 3 flat motor is fitted, either 1584cc in SP1 or 1679cc in SP2. Unconfirmed sources at the time suggested a 1.7 liter Type-4 engine was to be installed as used in the VW-Porsche 914. Since this would have to be imported from Germany and given the requirement for local production this was a non-starter. Therefore, whilst some literary sources and the Internet suggest the engine of the VW 411/412 was used it is not correct.
Therefore a Brasil produced engine had to be utilised, with the main difference between the two versions being the engine. Whilst in the SP-1, the 1584cc engine with 7.2:1 compression producing 54 HP at 4200rpm, from the VW 1600 was installed using two 32-PDSIT Solex carburetors, the SP-2 model had the benefit of 2.5mm larger (88mm) piston/cylinders, a 7.5:1 compression ratio, 34mm choke PDSIT carburettors, plus the big valve (39mmx32mm) 041 cylinder head fitted to increase capacity to 1679cc and an output of 65HP at 4600rpm.
A 40 litre fuel tank is fitted in the front compartment in both models.
The SP-1 was less well equipped so did not have the map reading lamp in the front passenger door, or the ammeter and the oil temperature gauge in the dashboard. No halogen bulbs were fitted in the headlights.
The factory listed only two options in the options list: Radio and leather upholstery.
Prices were: SP-1 27,700 Cruzeiros and for the SP-2 29,700 cruzeiros. This corresponded to 15,050 Mark for the SP-1, respectively 16,150 Mark for the SP-2
(Rate in June 1972: 1.85 cruzeiros = 1 mark =£0.12p).
The proposed water-cooled SP-3 never got past the prototype phase in 1976/77.
Thanks to Marc Poulton for translation