Buick Special Convertible Coupé, 1938 MY Series 40 46-C

The Buick Special Convertible Coupé is a convertible/cabriolet with 2 doors and a front mounted powerplant which supplies its power to the rear wheels. The Special Convertible Coupé forms part of Buick's Series 40 model series. Its 4.1 litre engine is a naturally aspirated, overhead valve, 8 cylinder that develops 107 bhp (108 PS/80 kW) of power at 3400 rpm, and maximum torque of 275 N·m (203 lb·ft/28 kgm) at 2000 rpm. Power is delivered to the wheels via a 3 speed manual gearbox.

Pictures

Key facts

Buick Special Convertible Coupé, 1938 MY Series 40 46-C information summary

What body style?
2 door convertible/cabriolet with 4 seats
How long?
5082 mm
What size engine?
4.1 litre, 4065 cm3
How many cylinders?
8, Straight
How much power?
108 PS / 107 bhp / 80 kW @ 3400 rpm
How much torque?
275 Nm / 203 ft.lb / 28 kgm @ 2000 rpm

Buick Series 40 models

2 door fixed-head coupé FR 3M 4065 cm3 108 PS 107 bhp 80 kW
2 door fixed-head coupé FR 3SA 4065 cm3 108 PS 107 bhp 80 kW
2 door convertible/​cabriolet FR 3SA 4065 cm3 108 PS 107 bhp 80 kW
4 door convertible/​cabriolet FR 3M 4065 cm3 108 PS 107 bhp 80 kW
4 door convertible/​cabriolet FR 3SA 4065 cm3 108 PS 107 bhp 80 kW
2 door fixed-head coupé FR 3M 4065 cm3 108 PS 107 bhp 80 kW
2 door fixed-head coupé FR 3SA 4065 cm3 108 PS 107 bhp 80 kW
2 door sedan/​saloon FR 3M 4065 cm3 108 PS 107 bhp 80 kW
4 door sedan/​saloon FR 3M 4065 cm3 108 PS 107 bhp 80 kW
4 door sedan/​saloon FR 3SA 4065 cm3 108 PS 107 bhp 80 kW
2 door sedan/​saloon FR 3SA 4065 cm3 108 PS 107 bhp 80 kW
4 door sedan/​saloon FR 3M 4065 cm3 108 PS 107 bhp 80 kW
2 door sedan/​saloon FR 3M 4065 cm3 108 PS 107 bhp 80 kW
2 door sedan/​saloon FR 3SA 4065 cm3 108 PS 107 bhp 80 kW
4 door sedan/​saloon FR 3SA 4065 cm3 108 PS 107 bhp 80 kW

Similar models

2 door convertible/​cabriolet FR 3OD 4487 cm3 112 PS 110 bhp 82 kW
2 door convertible/​cabriolet FR 3OD 4487 cm3 117 PS 115 bhp 86 kW
4 door convertible/​cabriolet FR 3OD 4487 cm3 117 PS 115 bhp 86 kW
4 door convertible/​cabriolet FR 3OD 4487 cm3 112 PS 110 bhp 82 kW
2 door convertible/​cabriolet FR 3M 3738 cm3 101 PS 100 bhp 75 kW
4 door convertible/​cabriolet FR 3M 3738 cm3 101 PS 100 bhp 75 kW
2 door convertible/​cabriolet FR 3M 3396 cm3 114 PS 112 bhp 84 kW
2 door convertible/​cabriolet FR 3M 3396 cm3 110 PS 108 bhp 81 kW
2 door convertible/​cabriolet FR 3M 3475 cm3 101 PS 100 bhp 75 kW
2 door convertible/​cabriolet FR 4022 cm3 101 PS 100 bhp 75 kW
2 door convertible/​cabriolet FR 3M 3878 cm3 101 PS 100 bhp 75 kW
2 door convertible/​cabriolet FR 3M 4078 cm3 101 PS 100 bhp 75 kW
4 door convertible/​cabriolet FR 3M 4078 cm3 101 PS 100 bhp 75 kW
1938 Buick Special Convertible Coupé data
bodywork
Body type4 seater convertible/cabriolet
Number of doors2
Designer
dimensions & weights
mminches
Wheelbase 3099 mm 122 inches
Track/tread (front) 1484 mm 58.4 inches
Track/tread (rear) 1503 mm 59.2 inches
Length 5082 mm 200.1 inches
Width
Height
Ground clearance
length:wheelbase ratio 1.64
Kerb weight
Weight distribution
fuel tank capacity 68.2 litres 15 UK Gal 18 US Gal
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer Buick
Engine code
Cylinders Straight 8
Capacity 4.1 litre
4065 cc
(248.062 cu in)
Bore × Stroke 78.58 × 104.77 mm
3.09 × 4.12 in
Bore/stroke ratio 0.75
Valve gear overhead valve (OHV)
2 valves per cylinder
16 valves in total
maximum power output 108 PS (107 bhp) (80 kW)
at 3400 rpm
Specific output 26.3 bhp/litre
0.43 bhp/cu in
maximum torque 275 Nm (203 ft·lb) (28 kgm)
at 2000 rpm
Specific torque 67.65 Nm/litre
0.82 ft·lb/cu3
Engine construction
sump
compression ratio 6.15:1
Fuel system 1 Marvel CDI carburettor
bmep (brake mean effective pressure) 850.1 kPa (123.3 psi)
Maximum RPM
crankshaft bearings 5
Engine coolant Water
Unitary capacity 508.13 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed
Power-to-weight ratio
Weight-to-power ratio
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres/100km
km/litre
UK MPG
US MPG
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
chassis
Engine position front
Engine layout longitudinal
Drive wheels rear wheel drive  
Torque split N/A
Steering
turns lock-to-lock
Turning circle
Front suspension
Rear suspension
Wheel size front
Wheel size rear
Tyres front 16 x 6.50
Tyres rear 16 x 6.50
Brakes F/R Dr/Dr
Front brake diameter
Rear brake diameter
Braked area
Gearbox 3 speed manual
Top gear ratio 1
Final drive ratio 4.40
general
Carfolio.com ID340868
Production total
Model code 46-C
Model family Series 40
RAC rating 30.6
Insurance classification No information available
Tax band No information available
1938 Buick Special Convertible Coupé added 2013-06-23.
Last modified 2015-07-19.