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Bugatti 46 Roadster

Category:

Description

The Bugatti Type 46 Roadster represents a more sporting and open-air interpretation of the luxurious grand tourer that Bugatti introduced in 1929. While the Type 46 was largely known for its stately saloons, cabriolets, and limousines, the roadster variant offered a lighter, more spirited driving experience without compromising the elegance and refinement that defined the model.

Powered by a 5.4-litre straight-eight engine, the Type 46 delivered strong, smooth performance, producing approximately 140 horsepower. The engine was mated to a three-speed gearbox that was unusually mounted as a single unit with the rear axle—a unique feature in Bugatti’s engineering that allowed for a quieter, more balanced ride. Though the car’s weight was considerable, the engine’s generous torque allowed for confident acceleration and comfortable cruising on long-distance journeys.

The roadster body style was typically a two-seater with a low windscreen, cut-down doors, and a folding fabric roof. Coachbuilders, sometimes including the Bugatti works itself, crafted these bodies with flowing, sculpted lines, emphasizing the long hood and abbreviated tail. The result was a car that combined visual dynamism with a relaxed, open driving posture—appealing to clients who sought both style and a more direct connection with the road.

The chassis retained the ladder-frame design with semi-elliptical leaf spring suspension and mechanical drum brakes all around. Handling was stable and responsive for a car of its size, though clearly oriented toward touring comfort rather than sharp agility.

Inside the cockpit, the roadster was fitted with high-quality materials such as leather upholstery and polished wood trim. The dashboard housed a full suite of classic instruments, often set in a machine-turned or wood veneer panel, reinforcing the sense of craftsmanship.

The Bugatti Type 46 Roadster stands out today as one of the rarer and more desirable body styles on the Type 46 chassis. With its combination of open-top motoring, luxurious execution, and the mechanical finesse typical of Bugatti, it remains a captivating example of 1930s grand touring at its finest.

Additional information

Manufacturer

Bugatti

Country

France

Production Started

1929

Production Stopped

1933

Vehicle Type

Bodystyle

Roadster

Number of Doors

2

Number of Seats

2

Top Speed

90 mph (145 kph)

0-60 mph (0-100 kph)

Power

103 / 140 / 138 @ 3500 rpm

Torque

Engine Manufacturer

Bugatti

Engine

Inline 8

Engine Location

Front

Engine Displacement

5359 cc (325.5 cu in)

Valvetrain

OHC

Valves per Cylinder

3

Bore / Stroke

81 x 130 mm (3.189 x 5.118 in)

Compression Ratio

Cooling System

Water

Charging System

Fuel Type

Petrol

Fuel System

Carburator, 1 x Smith-Barriquand

Aspiration

Normal

Fuel Capacity

Drive

Rear

Transmission

M3

Steering

Front Brakes

Rear Brakes

Front Suspension

Rear Suspension

Tyre Dimensions

Chassis

Weight

1250 kg (2756 lb)

Length

4780 mm (188.2 in)

Width

1730 mm (68.1 in)

Height

Wheelbase

3500 mm (137.8 in)