Glass Goggomobil Isar Series 1 T 700

Production period:	1958 to 1960
Class:	Motor Car
Body versions:	Sedan, station wagon
Engines:	688 c.c.
Length:	3430-3455 mm
Width:	1470 mm
Height:	1380-1390 mm
wheelbase:	2000 mm
curb weight:	650-720 kg

The Glas Isar series one is a small car from the late 1950s to the  early 1960s made by the former Hans Glas GmbH in Dingolfing. 

History 

Since until its appearance only the Goggomobil was known as a passenger car from Dingolfing, it was initially marketed as the "Big Goggomobil". in the past, the Goggomobil factory has specialized in very small vehicles with rear-mounted two-stroke engines and independent suspension all round. The series production of the new four-seat, two-door sedan began. Panoramic windscreen, small tail fins and the two-tone paintwork corresponded to the fashion of the time, which came to Europe from the USA. The keyhole-shaped rear lights were reminiscent of the Opel Kapitän of that time. Remarkable for the time was the self-supporting all-steel body with (from 1959) the floor section reinforced by box-shaped side members. The T.700's made in saloon and estate car versions, with increasing size, to revert to a more orthodox specification for a car of more conventional size. The 700-c.c. engine has kept the overall weight of a compact four-seater down to the very low figure of 12 cwt. with a combined body and chassis construction which feels extremely rigid and sturdy.

The front wheels were individually on lower wishbones and upper trailing arms with coil springs suspended; At the rear, the car had a rigid axle with leaf springs, which was still widespread at the time.

The engine air-cooled, flat-twin engine which is mounted at the front of the car a distributor is needed for the fan-cooled flat-twin engine which has a coil to each cylinder with contact breakers driven from the front of the crankshaft. in unit with a four-speed gear-box, Unusual in that all four forward gears are fitted with Porsche-type synchromesh and which drives the conventional back axle through an open propeller shaft giving good and acceleration is complemented by a fuel tank holding nearly 9 gallons which avoids the irritation of frequent stops. The boxer engine with a displacement of 584 cm³ developed 20 hp (15 kW) at 5000 rpm. This enabled a top speed of 98 km/h to be reached. The standard consumption was 5.3 l/100 km regular petrol.

From August 1958, the first version was accompanied by a more powerful variant. Your engine had 688 cc displacement and made 30 hp (22 kW). The maximum speed was 110 km/h, acceleration 40 s (0-100 km/h). Consumption rose to 5.8 l/100 km. The first variants of the "Big Goggomobil" had significant initial defects: The die-cast aluminium housing of the motors deformed at high operating temperatures. Due to this defect, the fuel consumption could increase to 12 l/100 km. The bodies twisted so badly on bad roads that cracks appeared and, in the worst case, the panoramic windscreen fell out of its frame. The complaints cost Hans Glas GmbH a lot of money and damaged the company's reputation. The steering is light and positive, with a light load the Goggomobil corners well with a mild understeer characteristic. The suspension provides a ride which is comfortable and well damped. The live back axle is mounted on semi-elliptic springs with almost vertical telescopic dampers, with an unladen weight of only 12 cwt., of which less than 40% is on the back wheels. The brakes are also good and are of unusually large diameter and have generous lining area relative to the weight and performance.

inside the seats are of generous size and comfortable for long distances The bench front seat is provided with separate back rests which hinge forward to
provide access to the back seat; they are independently adjustable for rake by means of threaded abutments. The back seats are then only just sufficient for two small adults. The spare wheel is mounted on the underside of the bonnet lid, and the air cleaner is easily detachable for access to the carburettor.

A built-in heater is part of the standard equipment; it is of unusual design in that the exhaust is the source of heat. Fresh air is tapped from the high-pressure side of the engine cooling fan and heated by passage through the surrounding exhaust pipes. A separate cold-air intake from the front of the car is led to the heater unit which has controls for mixing hot and cold fresh air and diverting through the wind- screen de-mister.
Instruments: Speedometer with total mileage recorder, Warning lights: Oil pressure, headlamp main beam, ignition, direction indicators, petrol Locks, with ignition key: Offside door and boot Glove locker Map pockets Parcel shelve Ashtray One in facia.
Interior lights: One, with manual switch and courtesy switch on driver's door.
Interior heater: Built-in, exhaust heated, with demisters and controllable fresh air inlet.

Extras available: Chrome body strips. radio, windscreen washers, roof rack. Upholstery material Floor covering

Exterior colours standardized: 7 singles, colours at extra cost.
Alternative body styles: Sunroof Esquire Estate Car.

The very wide doors extend forward to make front seat access particularly easy. Both front and rear compartments have moulded rubber floor coverings. The front seat backs are adjustable for rake, and the armrests in the rear, which cover the wheel arches, are detachable. The clean appearance of the body, with its wrap-round windscreen, is helped by the absence of quarter lights. The parking lamps are a standard fitting. The absence of the spare wheel at the rea leaves a boot which is larger than would appear from out-side, and of a practical shape. 

To break away from the Goggomobil microcar, the technically unchanged cars were given the name Isar T 700 in November 1959. At the same time, three-door estate variants called Isar K 700 also appeared.

Performance:

• Max. power (gross) 33.9 b.h.p. @ 4,900 r.p.m.
• Capacity: 688 c.c.
• Unladen kerb weight: 12 cwt.
• Acceleration: 0-50 m.p.h. 28.5 sec.
• Maximum speed: 66.0 m.p.h.
• Fuel consumption 43.8 m.p.g. 

Production numbers 

• Goggomobil T 600 and Isar T 600/K 600 up to July 1960: 16,940 units
• Goggomobil T 700 and Isar T 700/K 700 up to July 1960: 25,092 pieces