BMW Isetta 250 (12 Hp) 1955

General Information

Modification (Engine)

250 (12 Hp)

Start of production

1955 year

Powertrain Architecture

Internal Combustion engine

Body type

Quadricycle

Seats

Doors

End of production

1962 year

Engine

Power

12 Hp @ 5800 rpm.

Power per litre

49 Hp/l

Engine location

Middle, Longitudinal

Number of cylinders

Compression ratio

6.8

Number of valves per cylinder

Engine aspiration

Naturally aspirated engine

Torque

14 Nm @ 4500 rpm.

Engine displacement

245

Cylinder Bore

68 mm

Piston Stroke

68 mm

Engine oil capacity

1.8 l

Fuel System

Carburettor

Valvetrain

OHV

Dimensions

Rear (Back) track

1200 mm

Width

1380 mm

Height

1340 mm

Length

2355 mm

Front track

520 mm

Minimum turning circle (turning diameter)

8.3

Wheelbase

1500 mm

Performance Characteristics

Fuel Type

Petrol (Gasoline)

Weight-to-power ratio

30.8 kg/Hp, 32.4 Hp/tonne

Weight-to-torque ratio

26.4 kg/Nm, 37.8 Nm/tonne

Fuel consumption (economy) - combined

3.7 l

Maximum speed

85 km/h

Volume and Weight

Max load

230 kg

Kerb Weight

370 kg

Fuel tank capacity

13 l

Max. weight

600 kg

Transmission, Brakes and Suspension

Drivetrain Architecture

The Internal combustion engine (ICE) drives the rear wheels of the vehicle.

Drive wheel

Rear wheel drive

Number of gears and type of gearbox

4 gears, manual transmission

Front suspension

Independent coil spring

Rear suspension

Leaf spring

Front brakes

Drum, 180 mm

Rear brakes

Drum, 180 mm

Steering type

Worm-reduction unit

BMW Isetta 250 (12 Hp)