Osca MT4 1100 Spider

Category:

Description

The Osca MT4 1100 Spider, produced from 1947 to the early 1950s, was an Italian sports car built by Officine Specializzate Costruzione Automobili (OSCA), a company founded by the Maserati brothers after leaving their family’s Maserati company. Known for its lightweight design and agile handling, the MT4 (Maserati Tipo 4) became highly successful in motorsports, especially in endurance racing and hill climbs.

The MT4 1100 Spider was powered by a 1.1-liter inline-four engine with dual overhead camshafts, producing around 72 to 75 horsepower. This engine allowed the car to reach speeds of up to 180 km/h (112 mph), impressive for its time and class. The car featured twin Weber carburetors, which gave it quick throttle response and excellent performance in competitive racing. The MT4’s engine was meticulously designed to be lightweight yet powerful, complementing the car’s agile handling.

The design of the MT4 1100 Spider was characterized by its streamlined, low-slung bodywork, crafted by renowned Italian coachbuilders like Frua and Morelli. It featured smooth, aerodynamic lines, an open cockpit, and minimalistic interiors focused on reducing weight. The Spider’s body was typically aluminum, keeping the car’s total weight low and enhancing its speed and handling on the track.

The Osca MT4 1100 Spider achieved significant success in racing, including a notable victory at the 1954 12 Hours of Sebring, where an MT4 triumphed over larger, more powerful cars. This victory, along with numerous other wins in Europe and North America, solidified the MT4’s reputation as a giant-killer in racing circles. Today, the MT4 1100 Spider is a celebrated classic, admired by collectors for its racing pedigree, elegant design, and the craftsmanship of the Maserati brothers.

Additional information

Manufacturer

Osca

Country

Italy

Production Started

1950

Production Stopped

1956

Vehicle Type

Bodystyle

Roadster

Number of Doors

2

Number of Seats

2

Top Speed

112 mph (180 kph)

0-60 mph (0-100 kph)

Power

68 / 92 / 91 @ 6600 rpm

Torque

Engine Manufacturer

Osca

Engine

Inline 4

Engine Location

Front

Engine Displacement

1092 cc (66.3 cu in)

Valvetrain

DOHC

Valves per Cylinder

2

Bore / Stroke

70 x 71 mm (2.756 x 2.795 in)

Compression Ratio

11.5:1

Cooling System

Water

Charging System

Fuel Type

Petrol

Fuel System

Carburator, 2 x Weber

Aspiration

-, Normal

Fuel Capacity

Drive

Rear

Transmission

M4

Steering

Front Brakes

Rear Brakes

Front Suspension

Rear Suspension

Tyre Dimensions

Chassis

Weight

750 kg (1653 lb)

Length

Width

Height

Wheelbase

2200 mm (86.6 in)